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How to get past paywalls and read scientific studies

By Whitson Gordon

Posted on Oct 23, 2019 9:37 PM EDT

4 minute read

Popular Science stories often link directly to scientific studies. You can get all the information you need from the articles themselves, and even more from these links, but if you get the urge to investigate further—perhaps to see the data for yourself—you’ll want to read the study firsthand. Unfortunately, many academic papers are hidden behind expensive paywalls.

There’s a lot to say about the academic research industry, but many believe scientific studies should be freely available to the public . Even if you find a paper that’s hidden behind a paid subscription, there are ways to get it for free—and we’re not talking about piracy. Often, the study you’re looking for may be freely, legally available elsewhere, if you know how to find it.

Google (Scholar) it

Don’t get discouraged just because one database says you need to pay for a specific study. Search for the title of the study (or a portion of the title with an author’s last name) on Google Scholar , the Google-powered search engine for academic literature. If you’re lucky, you’ll see a result with an [html] or [pdf] link on the right-hand side of the page, which should link you to the full text of the study.

If for some reason the right sidebar link doesn’t work, you can also click the “All 11 versions” link at the bottom of each result block to see more sites that offer the paper. You could also try searching regular ol’ Google for the paper’s title, perhaps with the filetype:PDF operator as part of your search terms. This may help you find it on sites that aren’t crawled by Google Scholar.

Use browser extensions to your advantage

If you’re a journalist, student, or science nerd who finds yourself regularly hunting for full-text articles, you can streamline the process a bit with a browser extension called Unpaywall . It works with Google Chrome and Mozilla Firefox, and displays a small padlock icon on the right side of your browser window whenever you visit a page dedicated to a scholarly article. If there’s a paywall and the padlock is green, that means Unpaywall found a free version somewhere on the web, and you can click the icon to visit it immediately. In my experience, this doesn’t find much more beyond a Google Scholar search, but it’s a lot easier than performing manual searches all the time. Heck, even if a site isn’t paywalled, Unpaywall’s green icon is still easier than hunting for the “Download PDF” button on a given page.

A tool called Open Access Button does something similar. It’s browser-agnostic and has been around for a bit longer, so try both tools and see which you like better. I think Unpaywall feels a bit smoother, but Open Access Button’s maturity may help you find things Unpaywall doesn’t know about yet.

Check your local library

Many public libraries subscribe to academic databases and share those subscriptions with their constituents. You may have to head to the library’s physical location to get a library card, if you don’t have one already, but those are usually free or cheap. And from then on, you should be able to access a lot of your library’s resources right from your computer at home, including scholarly journals (not to mention other paywalled magazines like Consumer Reports). If your library doesn’t have access to the publication you’re looking for, they may even be able to get it through an inter-library loan . If you ever feel lost, don’t hesitate to ask a librarian—they probably know the process like the back of their hand, and will do their best to help you find what you’re looking for.

If you’re a student, your school or university likely has access to more databases than you can shake a stick at (not to mention hordes of physical journals you can hunt through). If you aren’t a student but have a college nearby, ask them if they offer fee-based library cards—you may be able to pay for in-house access to their vast resources.

Email the study’s author

Finally, if you can’t find a paper anywhere online, you might be able to get it directly from one of the people who wrote it. The money earned by those paywalls doesn’t go to the researchers—it goes to the publisher, so authors are often happy to give you a copy of their paper for free (provided they’re allowed to do so).

Finding their current email address is the hard part. Papers will often contain an email address you can contact for questions, but if this becomes out of date, you’ll have to do a little hunting. Find the university or organization the researcher currently works for, not the one they worked for when the study was first published. A little Googling can usually point you in the right direction, but sites like ResearchGate and LinkedIn can also help. Some researchers have a personal website that may be up to date, as well, and in some cases, may even have their previous work available to download. But if not, shoot them a message, ask politely if they’d be willing to send you a copy, and thank them for their hard work.

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The war to free science

How librarians, pirates, and funders are liberating the world’s academic research from paywalls.

by Brian Resnick and Julia Belluz

The 27,500 scientists who work for the University of California generate 10 percent of all the academic research papers published in the United States.

Their university recently put them in a strange position: Starting July 10, these scientists will not be able to directly access much of the world’s published research they’re not involved in.

That’s because in February , the UC system — one of the country’s largest academic institutions, encompassing Berkeley, Los Angeles, Davis, and several other campuses — dropped its nearly $11 million annual subscription to Elsevier, the world’s largest publisher of academic journals.

On the face of it, this seemed like an odd move. Why cut off students and researchers from academic research?

In fact, it was a principled stance that may herald a revolution in the way science is shared around the world.

The University of California decided it doesn’t want scientific knowledge locked behind paywalls, and thinks the cost of academic publishing has gotten out of control.

Elsevier owns around 3,000 academic journals, and its articles account for some 18 percent of all the world’s research output. “They’re a monopolist, and they act like a monopolist,” says Jeffrey MacKie-Mason , head of the campus libraries at UC Berkeley and co-chair of the team that negotiated with the publisher. Elsevier makes huge profits on its journals , generating billions of dollars a year for its parent company RELX.

This is a story about more than subscription fees. It’s about how a private industry has come to dominate the institutions of science, and how librarians, academics, and even pirates are trying to regain control.

The University of California is not the only institution fighting back. “There are thousands of Davids in this story,” says the head of campus libraries at the University of California Davis MacKenzie Smith, who, like other librarians around the world, has been pushing for more open access to science. “But only a few big Goliaths.”

Will the Davids prevail?

The academic publishing industry, explained

Imagine your tax dollars have gone to build a new road in your neighborhood.

Now imagine that the company overseeing the road work charged its workers a fee rather than paying them a salary.

The overseers in charge of making sure the road was up to standard also weren’t paid. And if you, the taxpayer, want to access the road today, you need to buy a seven-figure annual subscription or pay high fees for one-off trips.

We’re not talking about roads — this is the state of scientific research, and how it’s distributed today through academic publishing.

Indeed, the industry built to publish and disseminate scientific articles — companies such as Elsevier and Springer Nature — has managed to become incredibly profitable by getting a lot of taxpayer-funded, highly skilled labor for free and affixing a premium price tag to its goods.

Academics are not paid for their article contributions to journals. They often have to pay fees to submit articles to journals and to publish. Peer reviewers, the overseers tasked with making sure the science published in the journals is up to standard, typically aren’t paid either.

And there’s more: Academic institutions have to purchase exorbitant subscriptions priced at hundreds of thousands of dollars each year so they can download and read their own and other scientists’ work from beyond the paywall. The same goes for members of the public who want to access the science they’ve funded with their tax dollars. A single research paper in  Science  can set you back $30 . Elsevier’s journals can cost, individually, thousands of dollars a year for a subscription .

Publishers and journal editors say there are steep costs associated with digital publishing, and that they add value at every step: They oversee and manage peer reviewers and editors, act as quality gatekeepers, and publish an ever-larger number of articles each year.

We spoke with executives at both Elsevier and Springer Nature, and they maintain their companies still provide a lot of value in ensuring the quality of academic research. It’s true these companies are not predatory journals , businesses that will publish just about any paper — without any scientific vetting — for a fee.

In 2018, Elsevier’s revenue grew by 2 percent , to a total of $3.2 billion. Gemma Hersh, a senior vice president for global policy at Elsevier, says the company’s net profit margin was 19 percent (more than double the net profit of Netflix ).

But critics, including open access crusaders, think the business model is due for a change. “I think we’re nearing the tipping point, and the industry is going to change, just like the industry for recorded music has changed, the industry for movies has changed,” MacKie-Mason says. “[The publishers] know it’s going to happen. They just want to protect their profits and their business model as long as they can.”

It’s a business model as convoluted as the road you paid for but can’t use. And it grows more expensive for universities every year.

Now the status quo is slowly shifting. There is a small army of people who aren’t putting up with the gouging any longer.

This disparate band of revolutionaries is waging war on the scientific publishing industrial complex on three fronts:

• Librarians and science funders are playing hardball to negotiate lower subscription fees to scientific journals.
• Scientists, increasingly, are realizing they don’t need paywalled academic journals to act as gatekeepers anymore. They’re finding clever workarounds, making the services that journals provide free.
• Open access crusaders, including science pirates, have created alternatives that free up journal articles and pressure publishers to expand access.

If they succeed, the cloistered, paywalled way that science has been disseminated for the past century could undergo a massive transformation. The walls, in other words, could fall.

If paywalls fall, the impact would reverberate globally. When science is locked behind paywalls, it means cancer patients can’t easily access and read the research on their conditions (even though research is often taxpayer-funded). When scholars can’t read the latest research, “that hinders the research they can do, and slows down the progress of humanity,” MacKie-Mason says. 

But there’s a big thing getting in the way of a revolution: prestige-obsessed scientists who continue to publish in closed-access journals. They’re like the road workers who keep paying fees to build infrastructure they can’t freely access. Until that changes, the walls will remain firmly intact.

How academic journals became so unaffordable

Scientific journals, published mainly by small scientific societies, sprouted up alongside the printing industry in the 17th century as a way to disseminate science and information about scientific meetings.

The first scientific journals, the Journal des sçavans and the Philosophical Transactions of the Royal Society of London , were distributed via mail. Like all pre-internet publishing models, early journals sold subscriptions. It wasn’t the hugely profitable industry it is today.

After World War II, the business changed dramatically. The journals — which were mostly based in Europe — focused on selling subscriptions internationally, targeting American universities flush with Cold-War era research funding. “They realized you can charge a library a lot more than an individual scholar,” says Aileen Fyfe , a historian specializing in academic publishing at the University of St. Andrews.

As more and more journals popped up, publishing companies began consolidating. In the 1950s, major publishers started to purchase journals, transforming a once diffuse business into what’s been called an oligopoly : a market controlled by a tiny number of producers.

By the early 1970s, just five companies — Reed-Elsevier, Wiley-Blackwell, Springer, and Taylor & Francis — published one-fifth of all natural and medical scientific articles, according to an analysis in PLOS One . By 2013, their share rose to 53 percent.

No single publisher embodies the consolidation, and the increase of costs, more than Elsevier, the biggest and most powerful scientific publisher in the world. The Dutch company now publishes nearly half a million articles in its 3,000 journals, including the influential Cell , Current Biology , and The Lancet .

And the consolidation, the lack of competition, means publishers can get away with charging very high prices.

When the internet arrived, electronic PDFs became the main medium through which articles were disseminated. At that point, “librarians were optimistic this was going to be the solution; at last, journals are going to become much, much cheaper,” Fyfe says.

But instead of adopting a new business and pricing model to match the new means of no-cost dissemination, consolidation gave academic publishers the freedom to raise prices. Starting in the late 1990s, publishers increasingly pushed sales of their subscriptions into large bundled deals. In this model, universities pay a hefty price to get a huge subset of a publisher’s journals, instead of purchasing individual titles.

The publishers argue the new mode of digital delivery has come with an array of additional costs. “We’re continuing to invest significantly in digital infrastructure, which has a lot of fixed costs that repeat each year. We’re employing thousands of technologists,” said Elsevier’s Gemma Hersh. “So it’s not the case that digital is cheaper.”

The publishers also say that the volume of articles they publish every year increases costs, and that libraries ought to be funded to pay for them. “The libraries are treated by the senior academics at these institutions as a fixed cost; they’re not a fixed cost,” says Steven Inchcoombe, the chief publishing officer at Springer Nature, which publishes the prestigious Nature family of journals.

In a July 10 statement , Hersh said of Elsevier’s battle with the UC system “this stalemate was avoidable” and that the company hopes “we can find a pragmatic way forward if there is will and engagement from both sides.”

The librarians beg to differ. For universities, the most frustrating development is that cost of access keeps rising at a very steep rate.

Take a look at this graph from the Association of Research Libraries. It shows the percent change in spending at university libraries. The category “ongoing resources expenditures” includes spending on academic journals, and it rose 521 percent between 1986 and 2014. Over that time, the consumer price index — the average increase of costs of common household goods — rose 118 percent.

Librarians at the breaking point

The University of Virginia has a website where you can see how much money its library is spending on journals. From 2016 to 2018, the costs for Elsevier journals increased by $118,000 for the university, from $1.716 million a year to $1.834 million.

The data shows that the university is also spending a lot of money for journals that no one who uses their library system reads. In 2018, the university paid Springer Nature $672,000 for nearly 4,000 journals — 1,400 of which no one ever accessed. No one at UVA read the Moscow University Chemistry Bulletin , or Lithology and Mineral Resources , for example.

Why are universities paying for journals that no one reads? “It’s a lot like the cable bundle — they tell you you’re getting 250 channels, but if you look inside your heart, you know all you want is ESPN and AMC,” says Brandon Butler , director of information policy at the University of Virginia Library. An individual journal subscription can cost a university thousands of dollars. “UVA is absolutely considering cutting these bundles,” he says. “It’s quite likely we will, unless the price and other terms change radically.” 

As the University of North Carolina Chapel Hill librarian, Elaine Westbrooks is facing what she and so many other academic librarians call the “serials crisis”: “If we buy the exact same journals every year, I have to pay at least $500,000 more just for inflation,” she says. “I can’t afford it.”

In her ongoing negotiations with Elsevier, Westbrooks is considering “the nuclear option,” as she puts it. That is, canceling the subscription that gives UNC Chapel Hill students and faculty access to thousands of Elsevier journals.

“It felt very much in 2017 the librarians felt beaten by the system and they couldn’t afford it,” says David Stuart, the researcher behind a yearly survey on the academic publishing industry. “Whereas in 2018, you could feel there was a bit more strength and power emerging, and they had the ability to push back on the publishers a bit.”

Science funders increasingly are calling for open access

It’s not only librarians waking up to the fact that the costs of accessing science are unsustainable — so are science funders. A lot of the money that fuels this system comes from government grants. In the US, taxpayers spend $140 billion every year supporting research, a huge percentage of which they cannot access for free. When scientists do want to make their work open access (meaning published without a paywall), they’re charged an extra fee for that as well.

This year, a consortium of public research institutions in Norway canceled its Elsevier contract, a move that followed a research consortium in Hungary breaking ties with the Dutch giant. In Germany , nearly 700 libraries and research institutes made a deal with the publisher Wiley: For about 25 million euros, they’re paying to access journal content — but also demanding the work of their researchers, published in Wiley journals, be made open access for all at no additional cost.

These institutions and funders are also banding together as part of Coalition S : The agreement says all scientific publications that have sprung from publicly funded research grants must be published on open access journals or platforms by 2020.

“The ambition is if the University of California does this deal, Germany does this deal — we eventually get to the point where [all science is] open access. The libraries are no longer paying to subscribe, they’re paying to publish,” said Robert Kiley, the head of open research at the UK’s Wellcome Trust.

But open access doesn’t necessarily mean cheap. Currently, publishers typically charge academics to publish that way too. If you want your article to be open access in an Elsevier journal, you could pay anywhere from $500 — the fee to publish in Chemical Data Collections — up to $5,000, the fee to publish in European Urology.

“Open access is absolutely in the best interest of the research process,” Inchcoombe, the chief publishing officer at Springer Nature, says. “If you can pay once and then it’s free for everybody, you eliminate a lot of the friction from the system of access and entitlement.” He hopes publishing will transition, over time, to open access.

But he stresses that open access won’t change “the fact that if you do more research, and you want to communicate it to more people, then there is a cost of doing that that rises with volume.”

Put another way: Publishers are still going to get paid. Open access just means the paychecks come at the front end.

This brings us to another band of revolutionaries in the fight against the status quo: the scientists who want to find ways to circumvent the behemoth publishers.

Some scientists are saying no to the big publishers and spinning off open access journals of their own

The structure of academic publishing isn’t just a pain for librarians and funders; it’s a bad deal for academics too. Basically, scientists trade in their hard work, their results for their toils in the lab, for free, to a private industry that makes tons of money off their work, in return for prestige.

Some researchers have been waking up to this and spinning off freely accessible journals of their own. One of those scholars is a University of Cambridge mathematician named Timothy Gowers . In 2012, he wrote  a post  bemoaning the exorbitant prices that journals charge for access to research and vowed to stop sending his papers to any journal from  Elsevier .

To his surprise, the post went viral — and spurred a boycott of Elsevier by researchers around the world.  Within days , hundreds of researchers left comments commiserating with Gowers, a winner of the prestigious Fields Medal. Encouraged by that response, in 2016, Gowers launched a new online mathematics journal called  Discrete Analysis .  The nonprofit venture is owned and published by a team of scholars. With no publisher middlemen, access is completely free for all.

University of Montreal professor and open access researcher Vincent Larivière has helped take the Elsevier boycott another step further. In January 2019, the entire editorial board of the Elsevier-owned  Journal of Informetrics (including Larivière) resigned , and moved to MIT Press to start another open access journal, Quantitative Science Studies .

Again, the move was a principled one. “There’s a universalistic aspect to science, where you want it to be available to everyone,” Larivière said.

Even in the absence of starting open access journals, though, some scientists have been taking quieter, but equally principled, stands. One paleontologist took his name off a paper because his co-authors wouldn’t publish in an open access journal.

One key reason scientists, librarians, and funders can fight back is because other crusaders have made research more accessible. Enter the pirates.

Pirating and preprints are also pressuring the publishing industry to increase access

Over the past decade, it’s been getting easier and easier to circumvent the paywalls and find free research online. One big reason: pirates, including Kazakh neuroscientist Alexandra Elbakyan. Her (illegal) website Sci-Hub sees more than 500,000 visitors daily, and hosts more than 50 million academic papers.

But Sci-Hub is just one tool to get around paywalls. Scientists are also increasingly publishing prepublication versions of their studies (often called preprints). These study drafts are free to access.

The problem is that often, these studies have not yet been peer-reviewed. But  advocates of preprints  say they’re a net benefit to science: They allow for the public discussion of papers before they’re set in a finalized form — a type of peer review. And there are more preprints than ever before. (Some of the preprint servers are owned by the big publishers too.)

To find these preprints, all it takes is a single click: Unpaywall , a browser extension, helps users find the preprints associated with paywalled journal articles.

These mounting pressures on the academic publishing industry aren’t so different from the pressures on the music industry in the late ’90s. If you recall, in the late ’90s, music pirating was suddenly everywhere. You could log in to Napster and Limewire and illegally download any song you wanted for free.

“Piracy seems to come in when there’s a market failure,” UVA’s Butler says, “and people aren’t getting what they need at a price that makes sense for them.”

But as Larivière points out, Sci-Hub isn’t a long-term solution, and eventually, it may not even be needed: “Once there’s no paywalls, there’s no Sci-Hub anymore.”

What’s standing in the way of a full-on revolution? The culture of science.

For now, the paywalls mostly stand. Elsevier’s profits have actually increased in recent years. And as Elsevier’s Hersh told us, while the volume of open access research published by the company has been growing, so has the volume of paywalled papers.

Even with the growing pressure from the open science crusaders, the publishers remain in an extremely strong and nimble position. More and more, Elsevier’s business is not in the publication of journal articles, but in data-mining its enormous library. That means it’s using analytics to report on research trends, recommend articles scientists ought to be reading, and suggest co-authors to collaborate with based on shared interests.

Even if the publishers lose ground on selling subscriptions, they’ll still offer a profitable service based on control of the content. Still, it’s not hard to imagine a future where more and more institutions of science simply ignore, or circumvent, the major publishers.

The growing popularity of preprints is giving them one avenue to escape. One could imagine a system where researchers upload their drafts to preprint servers and then other academics choose to peer-review the articles. After peer review and revision, that preprint paper could be given a stamp of approval and added to a digital journal. This system is called an overlay journal (in that the editing and journal gatekeeping is overlain on top of preprints), and it already exists to a small extent . (Gowers’s Discrete Analysis is an overlay journal.)

So it’s not technology or innovation holding science back from a revolution. “The biggest elephant in the room is how researchers are rewarded for the work they do,” said Theodora Bloom , the executive editor at BMJ .

At the moment, researchers’ careers — the grants they’re given, the promotions they attain — rise or fall based on the number of publications they have in high-profile (or high-impact) journals.

“If an academic has a paper in Nature or Science, that’s seen as their passport to their next grant or promotion,” said Bloom.

As long as those incentives exist, and scientists continue to accept that status quo, open access journals won’t be able to compete. In fact, many academics still don’t publish in open access journals . One big reason: Some feel they’re less prestigious and lower quality , and that they push the publishing costs on the scientists.

“I’m also waiting to see change within academic culture,” says Fyfe, the historian. “Until we have enough academics who are willing to do something different, then I don’t see a big change happening.”

So for now, the revolution is just beginning. “Everyone agrees, in some way, the future is open access,” UVA’s Butler says. “Now the question is, in that future, how much control do the big publishers retain over every step in the scientific process? They’ve been working for over a decade to ensure the answer is the most possible control.”

Academic publishing isn’t a hot-button political topic. But it could be. “If citizens really cared, they could talk to their representatives and senators and tell them open access matters,” MacKie-Mason says, “and the government should get involved in changing this.“

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21 Legit Research Databases for Free Journal Articles in 2024

#scribendiinc

Written by  Scribendi

Has this ever happened to you? While looking for websites for research, you come across a research paper site that claims to connect academics to a peer-reviewed article database for free.

Intrigued, you search for keywords related to your topic, only to discover that you must pay a hefty subscription fee to access the service. After the umpteenth time being duped, you begin to wonder if there's even such a thing as free journal articles.

Subscription fees and paywalls are often the bane of students and academics, especially those at small institutions who don't provide access to many free article directories and repositories.

Whether you're working on an undergraduate paper, a PhD dissertation, or a medical research study, we want to help you find tools to locate and access the information you need to produce well-researched, compelling, and innovative work.

Below, we discuss why peer-reviewed articles are superior and list out the best free article databases to use in 2024.

Download Our Free Research Database Roundup PDF

Why peer-reviewed scholarly journal articles are more authoritative.

Determining what sources are reliable can be challenging. Peer-reviewed scholarly journal articles are the gold standard in academic research. Reputable academic journals have a rigorous peer-review process.

The peer review process provides accountability to the academic community, as well as to the content of the article. The peer review process involves qualified experts in a specific (often very specific) field performing a review of an article's methods and findings to determine things like quality and credibility.

Peer-reviewed articles can be found in peer-reviewed article databases and research databases, and if you know that a database of journals is reliable, that can offer reassurances about the reliability of a free article. Peer review is often double blind, meaning that the author removes all identifying information and, likewise, does not know the identity of the reviewers. This helps reviewers maintain objectivity and impartiality so as to judge an article based on its merit.

Where to Find Peer-Reviewed Articles

Peer-reviewed articles can be found in a variety of research databases. Below is a list of some of the major databases you can use to find peer-reviewed articles and other sources in disciplines spanning the humanities, sciences, and social sciences.

What Are Open Access Journals?

An open access (OA) journal is a journal whose content can be accessed without payment. This provides scholars, students, and researchers with free journal articles. OA journals use alternate methods of funding to cover publication costs so that articles can be published without having to pass those publication costs on to the reader.

Some of these funding models include standard funding methods like advertising, public funding, and author payment models, where the author pays a fee in order to publish in the journal. There are OA journals that have non-peer-reviewed academic content, as well as journals that focus on dissertations, theses, and papers from conferences, but the main focus of OA is peer-reviewed scholarly journal articles.

The internet has certainly made it easier to access research articles and other scholarly publications without needing access to a university library, and OA takes another step in that direction by removing financial barriers to academic content.

Choosing Wisely

Features of legitimate oa journals.

 There are things to look out for when trying to decide if a free publication journal is legitimate:

Mission statement —The mission statement for an OA journal should be available on their website.

Publication history —Is the journal well established? How long has it been available?

Editorial board —Who are the members of the editorial board, and what are their credentials?

Indexing —Can the journal be found in a reliable database?

Peer review —What is the peer review process? Does the journal allow enough time in the process for a reliable assessment of quality?

Impact factor —What is the average number of times the journal is cited over a two-year period?

Features of Illegitimate OA Journals

There are predatory publications that take advantage of the OA format, and they are something to be wary of. Here are some things to look out for:

Contact information —Is contact information provided? Can it be verified?

Turnaround —If the journal makes dubious claims about the amount of time from submission to publication, it is likely unreliable.

Editorial board —Much like determining legitimacy, looking at the editorial board and their credentials can help determine illegitimacy.

Indexing —Can the journal be found in any scholarly databases?

Peer review —Is there a statement about the peer review process? Does it fit what you know about peer review?

How to Find Scholarly Articles

Identify keywords.

Keywords are included in an article by the author. Keywords are an excellent way to find content relevant to your research topic or area of interest. In academic searches, much like you would on a search engine, you can use keywords to navigate through what is available to find exactly what you're looking for.

Authors provide keywords that will help you easily find their article when researching a related topic, often including general terms to accommodate broader searches, as well as some more specific terms for those with a narrower scope. Keywords can be used individually or in combination to refine your scholarly article search.

Narrow Down Results

Sometimes, search results can be overwhelming, and searching for free articles on a journal database is no exception, but there are multiple ways to narrow down your results. A good place to start is discipline.

What category does your topic fall into (psychology, architecture, machine learning, etc.)? You can also narrow down your search with a year range if you're looking for articles that are more recent.

A Boolean search can be incredibly helpful. This entails including terms like AND between two keywords in your search if you need both keywords to be in your results (or, if you are looking to exclude certain keywords, to exclude these words from the results).

Consider Different Avenues

If you're not having luck using keywords in your search for free articles, you may still be able to find what you're looking for by changing your tactics. Casting a wider net sometimes yields positive results, so it may be helpful to try searching by subject if keywords aren't getting you anywhere.

You can search for a specific publisher to see if they have OA publications in the academic journal database. And, if you know more precisely what you're looking for, you can search for the title of the article or the author's name.

Determining the Credibility of Scholarly Sources

Ensuring that sources are both credible and reliable is crucial to academic research. Use these strategies to help evaluate the usefulness of scholarly sources:

• Peer Review : Look for articles that have undergone a rigorous peer-review process. Peer-reviewed articles are typically vetted by experts in the field, ensuring the accuracy of the research findings.

Tip: To determine whether an article has undergone rigorous peer review, review the journal's editorial policies, which are often available on the journal's website. Look for information about the peer-review process, including the criteria for selecting reviewers, the process for handling conflicts of interest, and any transparency measures in place.

• Publisher Reputation : Consider the reputation of the publisher. Established publishers, such as well-known academic journals, are more likely to adhere to high editorial standards and publishing ethics.
• Author Credentials : Evaluate the credentials and expertise of the authors. Check their affiliations, academic credentials, and past publications to assess their authority in the field.
• Citations and References : Examine the citations and references provided in the article. A well-researched article will cite credible sources to support its arguments and findings. Verify the accuracy of the cited sources and ensure they are from reputable sources.
• Publication Date : Consider the publication date of the article. While older articles may still be relevant, particularly in certain fields, it is best to prioritize recent publications for up-to-date research and findings.
• Journal Impact Factor : Assess the journal's impact factor or other metrics that indicate its influence and reputation within the academic community. Higher impact factor journals are generally considered more prestigious and reliable. 

Tip: Journal Citation Reports (JCR), produced by Clarivate Analytics, is a widely used source for impact factor data. You can access JCR through academic libraries or directly from the Clarivate Analytics website if you have a subscription.

• Peer Recommendations : Seek recommendations from peers, mentors, or professors in your field. They can provide valuable insights and guidance on reputable sources and journals within your area of study.
• Cross-Verification : Cross-verify the information presented in the article with other credible sources. Compare findings, methodologies, and conclusions with similar studies to ensure consistency and reliability.

By employing these strategies, researchers can confidently evaluate the credibility and reliability of scholarly sources, ensuring the integrity of their research contributions in an ever-evolving landscape.

The Top 21 Free Online Journal and Research Databases

Navigating OA journals, research article databases, and academic websites trying to find high-quality sources for your research can really make your head spin. What constitutes a reliable database? What is a useful resource for your discipline and research topic? How can you find and access full-text, peer-reviewed articles?

Fortunately, we're here to help. Having covered some of the ins and outs of peer review, OA journals, and how to search for articles, we have compiled a list of the top 21 free online journals and the best research databases. This list of databases is a great resource to help you navigate the wide world of academic research.

These databases provide a variety of free sources, from abstracts and citations to full-text, peer-reviewed OA journals. With databases covering specific areas of research and interdisciplinary databases that provide a variety of material, these are some of our favorite free databases, and they're totally legit!

CORE is a multidisciplinary aggregator of OA research. CORE has the largest collection of OA articles available. It allows users to search more than 219 million OA articles. While most of these link to the full-text article on the original publisher's site, or to a PDF available for download, five million records are hosted directly on CORE.

CORE's mission statement is a simple and straightforward commitment to offering OA articles to anyone, anywhere in the world. They also host communities that are available for researchers to join and an ambassador community to enhance their services globally. In addition to a straightforward keyword search, CORE offers advanced search options to filter results by publication type, year, language, journal, repository, and author.

CORE's user interface is easy to use and navigate. Search results can be sorted based on relevance or recency, and you can search for relevant content directly from the results screen.

Collection : 219,537,133 OA articles

Other Services : Additional services are available from CORE, with extras that are geared toward researchers, repositories, and businesses. There are tools for accessing raw data, including an API that provides direct access to data, datasets that are available for download, and FastSync for syncing data content from the CORE database.

CORE has a recommender plug-in that suggests relevant OA content in the database while conducting a search and a discovery feature that helps you discover OA versions of paywalled articles. Other features include tools for managing content, such as a dashboard for managing repository output and the Repository Edition service to enhance discoverability.

Good Source of Peer-Reviewed Articles : Yes

Advanced Search Options : Language, author, journal, publisher, repository, DOI, year

2. ScienceOpen

Functioning as a research and publishing network, ScienceOpen offers OA to more than 74 million articles in all areas of science. Although you do need to register to view the full text of articles, registration is free. The advanced search function is highly detailed, allowing you to find exactly the research you're looking for.

The Berlin- and Boston-based company was founded in 2013 to "facilitate open and public communications between academics and to allow ideas to be judged on their merit, regardless of where they come from." Search results can be exported for easy integration with reference management systems.

You can also bookmark articles for later research. There are extensive networking options, including your Science Open profile, a forum for interacting with other researchers, the ability to track your usage and citations, and an interactive bibliography. Users have the ability to review articles and provide their knowledge and insight within the community.

Collection : 74,560,631

Other Services : None

Advanced Search Options :   Content type, source, author, journal, discipline

3. Directory of Open Access Journals

A multidisciplinary, community-curated directory, the Directory of Open Access Journals (DOAJ) gives researchers access to high-quality peer-reviewed journals. It has archived more than two million articles from 17,193 journals, allowing you to either browse by subject or search by keyword.

The site was launched in 2003 with the aim of increasing the visibility of OA scholarly journals online. Content on the site covers subjects from science, to law, to fine arts, and everything in between. DOAJ has a commitment to "increase the visibility, accessibility, reputation, usage and impact of quality, peer-reviewed, OA scholarly research journals globally, regardless of discipline, geography or language."

Information about the journal is available with each search result. Abstracts are also available in a collapsible format directly from the search screen. The scholarly article website is somewhat simple, but it is easy to navigate. There are 16 principles of transparency and best practices in scholarly publishing that clearly outline DOAJ policies and standards.

Collection : 6,817,242

Advanced Search Options :   Subject, journal, year

4. Education Resources Information Center

The Education Resources Information Center (ERIC) of the Institution of Education Sciences allows you to search by topic for material related to the field of education. Links lead to other sites, where you may have to purchase the information, but you can search for full-text articles only. You can also search only peer-reviewed sources.

The service primarily indexes journals, gray literature (such as technical reports, white papers, and government documents), and books. All sources of material on ERIC go through a formal review process prior to being indexed. ERIC's selection policy is available as a PDF on their website.

The ERIC website has an extensive FAQ section to address user questions. This includes categories like general questions, peer review, and ERIC content. There are also tips for advanced searches, as well as general guidance on the best way to search the database. ERIC is an excellent database for content specific to education.

Collection : 1,292,897

Advanced Search Options : Boolean

5. arXiv e-Print Archive

The arXiv e-Print Archive is run by Cornell University Library and curated by volunteer moderators, and it now offers OA to more than one million e-prints.

There are advisory committees for all eight subjects available on the database. With a stated commitment to an "emphasis on openness, collaboration, and scholarship," the arXiv e-Print Archive is an excellent STEM resource.

The interface is not as user-friendly as some of the other databases available, and the website hosts a blog to provide news and updates, but it is otherwise a straightforward math and science resource. There are simple and advanced search options, and, in addition to conducting searches for specific topics and articles, users can browse content by subject. The arXiv e-Print Archive clearly states that they do not peer review the e-prints in the database.

Collection : 1,983,891

Good Source of Peer-Reviewed Articles : No

Advanced Search Options :   Subject, date, title, author, abstract, DOI

6. Social Science Research Network

The Social Science Research Network (SSRN) is a collection of papers from the social sciences community. It is a highly interdisciplinary platform used to search for scholarly articles related to 67 social science topics. SSRN has a variety of research networks for the various topics available through the free scholarly database.

The site offers more than 700,000 abstracts and more than 600,000 full-text papers. There is not yet a specific option to search for only full-text articles, but, because most of the papers on the site are free access, it's not often that you encounter a paywall. There is currently no option to search for only peer-reviewed articles.

You must become a member to use the services, but registration is free and enables you to interact with other scholars around the world. SSRN is "passionately committed to increasing inclusion, diversity and equity in scholarly research," and they encourage and discuss the use of inclusive language in scholarship whenever possible.

Collection : 1,058,739 abstracts; 915,452 articles

Advanced Search Options : Term, author, date, network

7. Public Library of Science

Public Library of Science (PLOS) is a big player in the world of OA science. Publishing 12 OA journals, the nonprofit organization is committed to facilitating openness in academic research. According to the site, "all PLOS content is at the highest possible level of OA, meaning that scientific articles are immediately and freely available to anyone, anywhere."

PLOS outlines four fundamental goals that guide the organization: break boundaries, empower researchers, redefine quality, and open science. All PLOS journals are peer-reviewed, and all 12 journals uphold rigorous ethical standards for research, publication, and scientific reporting.

PLOS does not offer advanced search options. Content is organized by topic into research communities that users can browse through, in addition to options to search for both articles and journals. The PLOS website also has resources for peer reviewers, including guidance on becoming a reviewer and on how to best participate in the peer review process.

Collection : 12 journals

Advanced Search Options : None

8. OpenDOAR

OpenDOAR, or the Directory of Open Access Repositories, is a comprehensive resource for finding free OA journals and articles. Using Google Custom Search, OpenDOAR combs through OA repositories around the world and returns relevant research in all disciplines.

The repositories it searches through are assessed and categorized by OpenDOAR staff to ensure they meet quality standards. Inclusion criteria for the database include requirements for OA content, global access, and categorically appropriate content, in addition to various other quality assurance measures. OpenDOAR has metadata, data, content, preservation, and submission policies for repositories, in addition to two OA policy statements regarding minimum and optimum recommendations.

This database allows users to browse and search repositories, which can then be selected, and articles and data can be accessed from the repository directly. As a repository database, much of the content on the site is geared toward the support of repositories and OA standards.

Collection : 5,768 repositories

Other Services : OpenDOAR offers a variety of additional services. Given the nature of the platform, services are primarily aimed at repositories and institutions, and there is a marked focus on OA in general. Sherpa services are OA archiving tools for authors and institutions.

They also offer various resources for OA support and compliance regarding standards and policies. The publication router matches publications and publishers with appropriate repositories.

There are also services and resources from JISC for repositories for cost management, discoverability, research impact, and interoperability, including ORCID consortium membership information. Additionally, a repository self-assessment tool is available for members.

Advanced Search Options :   Name, organization name, repository type, software name, content type, subject, country, region

9. Bielefeld Academic Search Engine

The Bielefeld Academic Search Engine (BASE) is operated by the Bielefeld University Library in Germany, and it offers more than 240 million documents from more than 8,000 sources. Sixty percent of its content is OA, and you can filter your search accordingly.

BASE has rigorous inclusion requirements for content providers regarding quality and relevance, and they maintain a list of content providers for the sake of transparency, which can be easily found on their website. BASE has a fairly elegant interface. Search results can be organized by author, title, or date.

From the search results, items can be selected and exported, added to favorites, emailed, and searched in Google Scholar. There are basic and advanced search features, with the advanced search offering numerous options for refining search criteria. There is also a feature on the website that saves recent searches without additional steps from the user.

Collection : 276,019,066 documents; 9,286 content providers

Advanced Search Options :   Author, subject, year, content provider, language, document type, access, terms of reuse

10. Digital Library of the Commons Repository

Run by Indiana University, the Digital Library of the Commons (DLC) Repository is a multidisciplinary journal repository that allows users to access thousands of free and OA articles from around the world. You can browse by document type, date, author, title, and more or search for keywords relevant to your topic.

DCL also offers the Comprehensive Bibliography of the Commons, an image database, and a keyword thesaurus for enhanced search parameters. The repository includes books, book chapters, conference papers, journal articles, surveys, theses and dissertations, and working papers. DCL advanced search features drop-down menus of search types with built-in Boolean search options.

Searches can be sorted by relevance, title, date, or submission date in ascending or descending order. Abstracts are included in selected search results, with access to full texts available, and citations can be exported from the same page. Additionally, the image database search includes tips for better search results.

Collection : 10,784

Advanced Search Options :   Author, date, title, subject, sector, region, conference

11. CIA World Factbook

The CIA World Factbook is a little different from the other resources on this list in that it is not an online journal directory or repository. It is, however, a useful free online research database for academics in a variety of disciplines.

All the information is free to access, and it provides facts about every country in the world, which are organized by category and include information about history, geography, transportation, and much more. The World Factbook can be searched by country or region, and there is also information about the world's oceans.

This site contains resources related to the CIA as an organization rather than being a scientific journal database specifically. The site has a user interface that is easy to navigate. The site also provides a section for updates regarding changes to what information is available and how it is organized, making it easier to interact with the information you are searching for.

Collection : 266 countries

12. Paperity

Paperity boasts its status as the "first multidisciplinary aggregator of OA journals and papers." Their focus is on helping you avoid paywalls while connecting you to authoritative research. In addition to providing readers with easy access to thousands of journals, Paperity seeks to help authors reach their audiences and help journals increase their exposure to boost readership.

Paperity has journal articles for every discipline, and the database offers more than a dozen advanced search options, including the length of the paper and the number of authors. There is even an option to include, exclude, or exclusively search gray papers.

Paperity is available for mobile, with both a mobile site and the Paperity Reader, an app that is available for both Android and Apple users. The database is also available on social media. You can interact with Paperity via Twitter and Facebook, and links to their social media are available on their homepage, including their Twitter feed.

Collection : 8,837,396

Advanced Search Options : Title, abstract, journal title, journal ISSN, publisher, year of publication, number of characters, number of authors, DOI, author, affiliation, language, country, region, continent, gray papers

13. dblp Computer Science Bibliography

The dblp Computer Science Bibliography is an online index of major computer science publications. dblp was founded in 1993, though until 2010 it was a university-specific database at the University of Trier in Germany. It is currently maintained by the Schloss Dagstuhl – Leibniz Center for Informatics.

Although it provides access to both OA articles and those behind a paywall, you can limit your search to only OA articles. The site indexes more than three million publications, making it an invaluable resource in the world of computer science. dblp entries are color-coded based on the type of item.

dblp has an extensive FAQ section, so questions that might arise about topics like the database itself, navigating the website, or the data on dblp, in addition to several other topics, are likely to be answered. The website also hosts a blog and has a section devoted to website statistics.

Collection : 5,884,702

14. EconBiz

EconBiz is a great resource for economic and business studies. A service of the Leibniz Information Centre for Economics, it offers access to full texts online, with the option of searching for OA material only. Their literature search is performed across multiple international databases.

EconBiz has an incredibly useful research skills section, with resources such as Guided Walk, a service to help students and researchers navigate searches, evaluate sources, and correctly cite references; the Research Guide EconDesk, a help desk to answer specific questions and provide advice to aid in literature searches; and the Academic Career Kit for what they refer to as Early Career Researchers.

Other helpful resources include personal literature lists, a calendar of events for relevant calls for papers, conferences, and workshops, and an economics terminology thesaurus to help in finding keywords for searches. To stay up-to-date with EconBiz, you can sign up for their newsletter.

Collection : 1,075,219

Advanced Search Options :   Title, subject, author, institution, ISBN/ISSN, journal, publisher, language, OA only

15. BioMed Central

BioMed Central provides OA research from more than 300 peer-reviewed journals. While originally focused on resources related to the physical sciences, math, and engineering, BioMed Central has branched out to include journals that cover a broader range of disciplines, with the aim of providing a single platform that provides OA articles for a variety of research needs. You can browse these journals by subject or title, or you can search all articles for your required keyword.

BioMed Central has a commitment to peer-reviewed sources and to the peer review process itself, continually seeking to help and improve the peer review process. They're "committed to maintaining high standards through full and stringent peer review."

Additionally, the website includes resources to assist and support editors as part of their commitment to providing high-quality, peer-reviewed OA articles.

Collection : 507,212

Other Services : BMC administers the International Standard Randomised Controlled Trial Number (ISRCTN) registry. While initially designed for registering clinical trials, since its creation in 2000, the registry has broadened its scope to include other health studies as well.

The registry is recognized by the International Committee of Medical Journal Editors, as well as the World Health Organization (WHO), and it meets the requirements established by the WHO International Clinical Trials Registry Platform.

The study records included in the registry are all searchable and free to access. The ISRCTN registry "supports transparency in clinical research, helps reduce selective reporting of results and ensures an unbiased and complete evidence base."

Advanced Search Options :   Author, title, journal, list

A multidisciplinary search engine, JURN provides links to various scholarly websites, articles, and journals that are free to access or OA. Covering the fields of the arts, humanities, business, law, nature, science, and medicine, JURN has indexed almost 5,000 repositories to help you find exactly what you're looking for.

Search features are enhanced by Google, but searches are filtered through their index of repositories. JURN seeks to reach a wide audience, with their search engine tailored to researchers from "university lecturers and students seeking a strong search tool for OA content" and "advanced and ambitious students, age 14-18" to "amateur historians and biographers" and "unemployed and retired lecturers."

That being said, JURN is very upfront about its limitations. They admit to not being a good resource for educational studies, social studies, or psychology, and conference archives are generally not included due to frequently unstable URLs.

Collection : 5,064 indexed journals

Other Services : JURN has a browser add-on called UserScript. This add-on allows users to integrate the JURN database directly into Google Search. When performing a search through Google, the add-on creates a link that sends the search directly to JURN CSE. JURN CSE is a search service that is hosted by Google.

Clicking the link from the Google Search bar will run your search through the JURN database from the Google homepage. There is also an interface for a DuckDuckGo search box; while this search engine has an emphasis on user privacy, for smaller sites that may be indexed by JURN, DuckDuckGo may not provide the same depth of results.

Advanced Search Options :   Google search modifiers

Dryad is a digital repository of curated, OA scientific research data. Launched in 2009, it is run by a not-for-profit membership organization, with a community of institutional and publisher members for whom their services have been designed. Members include institutions such as Stanford, UCLA, and Yale, as well as publishers like Oxford University Press and Wiley.

Dryad aims to "promote a world where research data is openly available, integrated with the scholarly literature, and routinely reused to create knowledge." It is free to access for the search and discovery of data. Their user experience is geared toward easy self-depositing, supports Creative Commons licensing, and provides DOIs for all their content.

Note that there is a publishing charge associated if you wish to publish your data in Dryad.  When searching datasets, they are accompanied by author information and abstracts for the associated studies, and citation information is provided for easy attribution.

Collection : 44,458

Advanced Search Options : No

Run by the British Library, the E-Theses Online Service (EThOS) allows you to search over 500,000 doctoral theses in a variety of disciplines. All of the doctoral theses available on EThOS have been awarded by higher education institutions in the United Kingdom.

Although some full texts are behind paywalls, you can limit your search to items available for immediate download, either directly through EThOS or through an institution's website. More than half of the records in the database provide access to full-text theses.

EThOS notes that they do not hold all records for all institutions, but they strive to index as many doctoral theses as possible, and the database is constantly expanding, with approximately 3,000 new records added and 2,000 new full-text theses available every month. The availability of full-text theses is dependent on multiple factors, including their availability in the institutional repository and the level of repository development.

Collection : 500,000+

Advanced Search Options : Abstract, author's first name, author's last name, awarding body, current institution, EThOS ID, year, language, qualifications, research supervisor, sponsor/funder, keyword, title

PubMed is a research platform well-known in the fields of science and medicine. It was created and developed by the National Center for Biotechnology Information (NCBI) at the National Library of Medicine (NLM). It has been available since 1996 and offers access to "more than 33 million citations for biomedical literature from MEDLINE, life science journals, and online books."

While PubMed does not provide full-text articles directly, and many full-text articles may be behind paywalls or require subscriptions to access them, when articles are available from free sources, such as through PubMed Central (PMC), those links are provided with the citations and abstracts that PubMed does provide.

PMC, which was established in 2000 by the NLM, is a free full-text archive that includes more than 6,000,000 records. PubMed records link directly to corresponding PMC results. PMC content is provided by publishers and other content owners, digitization projects, and authors directly.

Collection : 33,000,000+

Advanced Search Options : Author's first name, author's last name, identifier, corporation, date completed, date created, date entered, date modified, date published, MeSH, book, conflict of interest statement, EC/RN number, editor, filter, grant number, page number, pharmacological action, volume, publication type, publisher, secondary source ID, text, title, abstract, transliterated title

20. Semantic Scholar

A unique and easy-to-use resource, Semantic Scholar defines itself not just as a research database but also as a "search and discovery tool." Semantic Scholar harnesses the power of artificial intelligence to efficiently sort through millions of science-related papers based on your search terms.

Through this singular application of machine learning, Semantic Scholar expands search results to include topic overviews based on your search terms, with the option to create an alert for or further explore the topic. It also provides links to related topics.

In addition, search results produce "TLDR" summaries in order to provide concise overviews of articles and enhance your research by helping you to navigate quickly and easily through the available literature to find the most relevant information. According to the site, although some articles are behind paywalls, "the data [they] have for those articles is limited," so you can expect to receive mostly full-text results.

Collection : 203,379,033

Other Services : Semantic Scholar supports multiple popular browsers. Content can be accessed through both mobile and desktop versions of Firefox, Microsoft Edge, Google Chrome, Apple Safari, and Opera.

Additionally, Semantic Scholar provides browser extensions for both Chrome and Firefox, so AI-powered scholarly search results are never more than a click away. The mobile interface includes an option for Semantic Swipe, a new way of interacting with your research results.

There are also beta features that can be accessed as part of the Beta Program, which will provide you with features that are being actively developed and require user feedback for further improvement.

Advanced Search Options : Field of study, date range, publication type, author, journal, conference, PDF

Zenodo, powered by the European Organization for Nuclear Research (CERN), was launched in 2013. Taking its name from Zenodotus, the first librarian of the ancient library of Alexandria, Zenodo is a tool "built and developed by researchers, to ensure that everyone can join in open science." Zenodo accepts all research from every discipline in any file format.

However, Zenodo also curates uploads and promotes peer-reviewed material that is available through OA. A DOI is assigned to everything that is uploaded to Zenodo, making research easily findable and citable. You can sort by keyword, title, journal, and more and download OA documents directly from the site.

While there are closed access and restricted access items in the database, the vast majority of research is OA material. Search results can be filtered by access type, making it easy to view the free articles available in the database.

Collection : 2,220,000+

Advanced Search Options : Access, file type, keywords

Check out our roundup of free research databases as a handy one-page PDF.

How to find peer-reviewed articles.

There are a lot of free scholarly articles available from various sources. The internet is a big place. So how do you go about finding peer-reviewed articles when conducting your research? It's important to make sure you are using reputable sources.

The first source of the article is the person or people who wrote it. Checking out the author can give you some initial insight into how much you can trust what you’re reading. Looking into the publication information of your sources can also indicate whether the article is reliable.

Aspects of the article, such as subject and audience, tone, and format, are other things you can look at when evaluating whether the article you're using is valid, reputable, peer-reviewed material. So, let's break that down into various components so you can assess your research to ensure that you're using quality articles and conducting solid research.

Check the Author

Peer-reviewed articles are written by experts or scholars with experience in the field or discipline they're writing about. The research in a peer-reviewed article has to pass a rigorous evaluation process, so it's a foregone conclusion that the author(s) of a peer-reviewed article should have experience or training related to that research.

When evaluating an article, take a look at the author's information. What credentials does the author have to indicate that their research has scholarly weight behind it? Finding out what type of degree the author has—and what that degree is in—can provide insight into what kind of authority the author is on the subject.

Something else that might lend credence to the author's scholarly role is their professional affiliation. A look at what organization or institution they are affiliated with can tell you a lot about their experience or expertise. Where were they trained, and who is verifying their research?

Identify Subject and Audience

The ultimate goal of a study is to answer a question. Scholarly articles are also written for scholarly audiences, especially articles that have gone through the peer review process. This means that the author is trying to reach experts, researchers, academics, and students in the field or topic the research is based on.

Think about the question the author is trying to answer by conducting this research, why, and for whom. What is the subject of the article? What question has it set out to answer? What is the purpose of finding the information? Is the purpose of the article of importance to other scholars? Is it original content?

Research should also be approached analytically. Is the methodology sound? Is the author using an analytical approach to evaluate the data that they have obtained? Are the conclusions they've reached substantiated by their data and analysis? Answering these questions can reveal a lot about the article's validity.

Format Matters

Reliable articles from peer-reviewed sources have certain format elements to be aware of. The first is an abstract. An abstract is a short summary or overview of the article. Does the article have an abstract? It's unlikely that you're reading a peer-reviewed article if it doesn't. Peer-reviewed journals will also have a word count range. If an article seems far too short or incredibly long, that may be reason to doubt it.

Another feature of reliable articles is the sections the information is divided into. Peer-reviewed research articles will have clear, concise sections that appropriately organize the information. This might include a literature review, methodology, results (in the case of research articles), and a conclusion.

One of the most important sections is the references or bibliography. This is where the researcher lists all the sources of their information. A peer-reviewed source will have a comprehensive reference section.

An article that has been written to reach an academic community will have an academic tone. The language that is used, and the way this language is used, is important to consider. If the article is riddled with grammatical errors, confusing syntax, and casual language, it almost definitely didn't make it through the peer review process.

Also consider the use of terminology. Every discipline is going to have standard terminology or jargon that can be used and understood by other academics in the discipline. The language in a peer-reviewed article is going to reflect that.

If the author is going out of their way to explain simple terms, or terms that are standard to the field or discipline, it's unlikely that the article has been peer reviewed, as this is something that the author would be asked to address during the review process.

Publication

The source of the article will be a very good indicator of the likelihood that it was peer reviewed. Where was the article published? Was it published alongside other academic articles in the same discipline? Is it a legitimate and reputable scholarly publication?

A trade publication or newspaper might be legitimate or reputable, but it is not a scholarly source, and it will not have been subject to the peer review process. Scholarly journals are the best resource for peer-reviewed articles, but it's important to remember that not all scholarly journals are peer reviewed.

It's helpful to look at a scholarly source's website, as peer-reviewed journals will have a clear indication of the peer review process. University libraries, institutional repositories, and reliable databases (and now you have a list of legit ones) can also help provide insight into whether an article comes from a peer-reviewed journal.

Common Research Mistakes to Avoid

Research is a lot of work. Even with high standards and good intentions, it's easy to make mistakes. Perhaps you searched for access to scientific journals for free and found the perfect peer-reviewed sources, but you forgot to document everything, and your references are a mess. Or, you only searched for free online articles and missed out on a ground-breaking study that was behind a paywall.

Whether your research is for a degree or to get published or to satisfy your own inquisitive nature, or all of the above, you want all that work to produce quality results. You want your research to be thorough and accurate.

To have any hope of contributing to the literature on your research topic, your results need to be high quality. You might not be able to avoid every potential mistake, but here are some that are both common and easy to avoid.

Sticking to One Source

One of the hallmarks of good research is a healthy reference section. Using a variety of sources gives you a better answer to your question. Even if all of the literature is in agreement, looking at various aspects of the topic may provide you with an entirely different picture than you would have if you looked at your research question from only one angle.

Not Documenting Every Fact

As you conduct your research, do yourself a favor and write everything down. Everything you include in your paper or article that you got from another source is going to need to be added to your references and cited.

It's important, especially if your aim is to conduct ethical, high-quality research, that all of your research has proper attribution. If you don't document as you go, you could end up making a lot of work for yourself if the information you don't write down is something that later, as you write your paper, you really need.

Using Outdated Materials

Academia is an ever-changing landscape. What was true in your academic discipline or area of research ten years ago may have since been disproven. If fifteen studies have come out since the article that you're using was published, it's more than a little likely that you're going to be basing your research on flawed or dated information.

If the information you're basing your research on isn't as up-to-date as possible, your research won't be of quality or able to stand up to any amount of scrutiny. You don't want all of your hard work to be for naught.

Relying Solely on Open Access Journals

OA is a great resource for conducting academic research. There are high-quality journal articles available through OA, and that can be very helpful for your research. But, just because you have access to free articles, that doesn't mean that there's nothing to be found behind a paywall.

Just as dismissing high-quality peer-reviewed articles because they are OA would be limiting, not exploring any paid content at all is equally short-sighted. If you're seeking to conduct thorough and comprehensive research, exploring all of your options for quality sources is going to be to your benefit.

Digging Too Deep or Not Deep Enough

Research is an art form, and it involves a delicate balance of information. If you conduct your research using only broad search terms, you won't be able to answer your research question well, or you'll find that your research provides information that is closely related to your topic but, ultimately, your findings are vague and unsubstantiated.

On the other hand, if you delve deeply into your research topic with specific searches and turn up too many sources, you might have a lot of information that is adjacent to your topic but without focus and perhaps not entirely relevant. It's important to answer your research question concisely but thoroughly.

Different Types of Scholarly Articles

Different types of scholarly articles have different purposes. An original research article, also called an empirical article, is the product of a study or an experiment. This type of article seeks to answer a question or fill a gap in the existing literature.

Research articles will have a methodology, results, and a discussion of the findings of the experiment or research and typically a conclusion.

Review articles overview the current literature and research and provide a summary of what the existing research indicates or has concluded. This type of study will have a section for the literature review, as well as a discussion of the findings of that review. Review articles will have a particularly extensive reference or bibliography section.

Theoretical articles draw on existing literature to create new theories or conclusions, or look at current theories from a different perspective, to contribute to the foundational knowledge of the field of study.

10 Tips for Navigating Journal Databases

Use the right academic journal database for your search, be that interdisciplinary or specific to your field. Or both!

If it's an option, set the search results to return only peer-reviewed sources.

Start by using search terms that are relevant to your topic without being overly specific.

Try synonyms, especially if your keywords aren't returning the desired results.

Even if you've found some good articles, try searching using different terms.

Explore the advanced search features of the database(s).

Learn to use Booleans (AND, OR, NOT) to expand or narrow your results.

Once you've gotten some good results from a more general search, try narrowing your search.

Read through abstracts when trying to find articles relevant to your research.

Keep track of your research and use citation tools. It'll make life easier when it comes time to compile your references.

7 Frequently Asked Questions

1. how do i get articles for free.

Free articles can be found through free online academic journals, OA databases, or other databases that include OA journals and articles. These resources allow you to access free papers online so you can conduct your research without getting stuck behind a paywall.

Academics don't receive payment for the articles they contribute to journals. There are often, in fact, publication fees that scholars pay in order to publish. This is one of the funding structures that allows OA journals to provide free content so that you don't have to pay fees or subscription costs to access journal articles.

2. How Do I Find Journal Articles?

Journal articles can be found in databases and institutional repositories that can be accessed at university libraries. However, online research databases that contain OA articles are the best resource for getting free access to journal articles that are available online.

Peer-reviewed journal articles are the best to use for academic research, and there are a number of databases where you can find peer-reviewed OA journal articles. Once you've found a useful article, you can look through the references for the articles the author used to conduct their research, and you can then search online databases for those articles, too.

3. How Do I Find Peer-Reviewed Articles?

Peer-reviewed articles can be found in reputable scholarly peer-reviewed journals. High-quality journals and journal articles can be found online using academic search engines and free research databases. These resources are excellent for finding OA articles, including peer-reviewed articles.

OA articles are articles that can be accessed for free. While some scholarly search engines and databases include articles that aren't peer reviewed, there are also some that provide only peer-reviewed articles, and databases that include non-peer-reviewed articles often have advanced search features that enable you to select "peer review only." The database will return results that are exclusively peer-reviewed content.

4. What Are Research Databases?

A research database is a list of journals, articles, datasets, and/or abstracts that allows you to easily search for scholarly and academic resources and conduct research online. There are databases that are interdisciplinary and cover a variety of topics.

For example, Paperity might be a great resource for a chemist as well as a linguist, and there are databases that are more specific to a certain field. So, while ERIC might be one of the best educational databases available for OA content, it's not going to be one of the best databases for finding research in the field of microbiology.

5. How Do I Find Scholarly Articles for Specific Fields?

There are interdisciplinary research databases that provide articles in a variety of fields, as well as research databases that provide articles that cater to specific disciplines. Additionally, a journal repository or index can be a helpful resource for finding articles in a specific field.

When searching an interdisciplinary database, there are frequently advanced search features that allow you to narrow the search results down so that they are specific to your field. Selecting "psychology" in the advanced search features will return psychology journal articles in your search results. You can also try databases that are specific to your field.

If you're searching for law journal articles, many law reviews are OA. If you don't know of any databases specific to history, visiting a journal repository or index and searching "history academic journals" can return a list of journals specific to history and provide you with a place to begin your research.

6. Are Peer-Reviewed Articles Really More Legitimate?

The short answer is yes, peer-reviewed articles are more legitimate resources for academic research. The peer review process provides legitimacy, as it is a rigorous review of the content of an article that is performed by scholars and academics who are experts in their field of study. The review provides an evaluation of the quality and credibility of the article.

Non-peer-reviewed articles are not subject to a review process and do not undergo the same level of scrutiny. This means that non-peer-reviewed articles are unlikely, or at least not as likely, to meet the same standards that peer-reviewed articles do.

7. Are Free Article Directories Legitimate?

Yes! As with anything, some databases are going to be better for certain requirements than others. But, a scholarly article database being free is not a reason in itself to question its legitimacy.

Free scholarly article databases can provide access to abstracts, scholarly article websites, journal repositories, and high-quality peer-reviewed journal articles. The internet has a lot of information, and it's often challenging to figure out what information is reliable. 

Research databases and article directories are great resources to help you conduct your research. Our list of the best research paper websites is sure to provide you with sources that are totally legit.

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How to Get All Free 4-Star Weapons in Wuthering Waves

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Wuthering Waves: How to Get More Shell Credits

Wuthering waves: iris locations, wuthering waves: pecok flower locations, quick links, how to get dauntless evernight (free 4-star broadblade), how to get a free 4-star weapon selector chest, how to craft free 4-star weapons.

Combat in Wuthering Waves relies heavily on equipping a character with a decent weapon that brings out their potential. While the game literally throws 3-Star weapons at the player, these weapons are essentially worthless, and spending any weapon upgrade materials or XP on them is a complete waste.

Like most other Gacha games, 4-Stars is where Wuwa starts giving players something they can actually use to beat end-game content. Luckily, Wuthering Waves is fairly generous for newcomers , giving them multiple ways to obtain decent 4-Star weapons to start their journey with.

Shell Credits are crucial resources for progression in Wuthering Waves; here are the quickest methods for farming them early on.

The Dauntless Evernight is a 4-Star DEF% scaling Broadblade that is the BiS weapon for Taoqi and an okay option for Calcharo and Jiyan in the absence of anything else. To obtain it, here is what players need to do:

• Start the mission ' We Promise, We Deliver ' in Jinzhou by interacting with the Bulletin Board near the Synthesizer.
• Progress the mission until you fight and defeat the Inferno Rider to get the trophy achievement 'Ride the Inferno.'

A cutscene will play out with the player taking control of the Inferno Rider until they reach the top of the floating skyscraper, ending with the Inferno Rider throwing his Broadblade near the top. This is the Dauntless Evernight, and it can be picked up after the fight is over. Players will have to climb the floating road to reach the final skyscraper and interact with the Broadblade stuck in the ground to claim it as their own. Note that the Dauntless Evernight only appears on the floating building after players defeat the Inferno Rider during the mission, not before.

When equipped, the Inferno Rider Echo can be used as a mount to gain a burst of speed for a short distance, which is excellent for cutting down on travel times during exploration.

The 4-Star Weapon Selector becomes available after completing a two-part quest chain: Hidden Dangers in Peaceful Life and Shadows of the Past . Hidden Dangers in Peaceful Life is an exploration quest that automatically gets added to the players' Journal by progressing the main story. Track the quest in the Journal to get started.

After completing Hidden Dangers of Peaceful Life, the next quest, Shadows of the Past, will automatically trigger with the quest objective "Wait for Xiaoyu's message ." The wait time for this is 24 hours in real-time (a full day). The timer starts when the quest begins, so if players complete the preceding quest at 9:00 AM on Monday, Xiaoyu's message will arrive at 9:00 AM on Tuesday.

Completing Shadows of the Past will put the Tiger's Maw mine back into operation, heralding the arrival of a couple of new NPC vendors. One of these NPC vendors, Shilang , arrives right next to the cooking station at the edge of the facility. His shop's name is Tiger's Maw Ore.

Players can buy the 4-Star Weapon Selector chest from Tiger's Maw Ore (Shilang) for 80 Lampylumen ores , which can be obtained by mining for them in the Tiger's Maw. To get the ores quickly, consider joining another Wuthering Waves player's world to mine the Tiger's Maw (this only works if they have completed the Tiger's Maw questline as well).

Players can obtain a free 5-Star Weapon Selector Chest containing all standard 5-Star weapons upon reaching Union Level 45.

Players can craft free 4-Star weapons by using the Weapon Crafting station at Uncle Wei's shop in Jinzhou (location in the screenshot above). Five 4-Star Weapons can be crafted, one in each category. To craft any weapon, players will need to bring the following materials with them:

Wuthering Waves

6 Best Reddit Alternatives You Can Use For Free

Maybe you will like it even better

Reddit is the “front page of the internet” for many users. It might even be the first page you check when you go online. That’s why it’s so frustrating when that page isn’t very user-friendly, or when it’s lacking basic customization options. 

If you love Reddit but don’t enjoy using the official Reddit apps, you can try one of the third-party Reddit alternatives. They’re free to use and offer a better user experience for redditors. 

1. Deck for Reddit

If you consider yourself a Reddit power user, you’ll enjoy Deck for Reddit a lot. The name of the site is self-explanatory – it allows you to create a deck of columns with different subreddits in each. There’s no limit to how many columns you can have in one window. 

Deck for Reddit gives you more viewing capabilities – you can select a post and read it inside the column, or open and view it separately in a new browser tab. 

The only downside of the Deck for Reddit is that it doesn’t allow you to search the entire Reddit yet. 

Key Features:

• New interface – view Reddit in a form of a deck of columns with different subreddits in each
• Organize your subreddits by Hot, New, and Top
• Added viewing options: Standard, Wide, and Collapse
• Added customization options: light and dark themes, different fonts, an option to hide NSFW posts and the posts that you’ve already viewed

Unless you’re a complete beginner on Reddit , you probably have a collection of saved posts on the site. With the variety of content that you can find on Reddit, anything from a funny GIF to a political argument , it’s important to keep your saved posts organized. Updoot is the app that can help you find that one link or picture that you saved on Reddit and can’t seem to find now.

Updoot makes searching your saved Reddit posts easier. All you need to get started is to link your account to the web app. Then you’ll see all of your saved posts in one place on the Updoot site. 

• Keeps all your Saved posts in one place
• You don’t need to remember the entire text to search your posts — one word, even one letter, is enough to search
• According to the developers, Updoot can understand misspellings too — so you can find the post even if the author didn’t use the correct spelling

3. Old Reddit

Even though the official Reddit site has gone through a redesign, you can still access the Old Reddit in its original form and shape. If you’re a relatively new redditor who joined the site after it was redesigned you probably don’t feel any massive difference between the two. However, many experienced redditors find that Old Reddit had a much more practical interface, and overall the site was organized better. 

Whether you’re team Old Reddit, or team New Reddit, you can now enjoy your time on the site that you like most – old or new. You can even switch back and forth for a while to see which one works best for you. 

• Brings back the Old Reddit’s original interface
• According to user reviews, Old Reddit has better information density, and a better organized subreddits system
• Quicker than the new redesigned Reddit

4. Reddit Favorites

Given the amount of fake reviews on sites like Amazon , it’s difficult to trust any product recommendations. 

Reddit Favorites is the place where you can find product reviews and recommendations that you can trust by other redditors. Open the main page and select Products to see a full list of categories. You can also search the items by keywords, and the time period when they were listed 

Key Features

• Find items and products from a variety of categories, including software, YouTube videos, books, electronics, sports equipment, beauty products, clothing items, and more
• For every product, you get a list of comments where it was featured on Reddit
• See how many users recommended the product and the time period when it was most popular
• See every item’s popularity score set by Reddit Favorites

5. Boost For Reddit

As an Android user, you can find numerous Reddit clients on the Google Play Store. However, most of them are either cluttered with ads that you can’t skip, or ask you to buy a subscription to unlock premium features. Boost for reddit is a free Android app that doesn’t use ads which automatically makes it stand out.

• A dedicated ad-free Reddit app for Android that you can use for free
• Added customization options: light and dark themes, the ability to change the layout and filter content by the type of post (images, GIFs, albums, videos, text, or links)
• A special AMOLED theme that can help you use significantly smaller amounts of your smartphone’s battery when browsing Reddit

For iOS users, Apollo is a great third-party alternative that you can use to browse Reddit for free. Apollo was built by a former Apple employee and an experienced redditor, so you can trust the app to provide you with a seamless Reddit experience. 

Among the features that make Apollo stand out is a full Markdown writing editor that allows for extensive text formatting, like using bold text, italics, underlined text and strikethrough. 

The Key Features

• A dedicated Reddit app for iOS that you can use for free
• According to user reviews, works quicker than the official Reddit site
• A better fit for the iOS design and interface 
• A full Markdown writing editor that allows you to write posts and comments on Reddit faster and easier
• The app’s media viewer supports Imgur, Reddit, Gfycat, Streamable, YouTube, and other popular image host websites. You can import and view media from these sites without having to open it in a new tab or window. 

Explore Reddit Alternatives Further

What if it’s not the plain interface that you’re tired of, but Reddit itself? Maybe it’s time to change it up and try using a different platform for finding interesting, weird, or educational content . Could be your chance to find out if you’re a truly loyal redditor, or an occasional lurker like most of us. 

What third-party apps have you used to browse Reddit? What made you switch from the official Reddit app? Share your experience with the Reddit apps in the comments section below. 

Related Posts

• Reddit App Not Working? 9 Ways to Fix the App
• How to View and Delete Reddit History
• How to View Deleted Reddit Posts
• 14 Best Subreddits for Women and Their Interests
• How to Download Reddit Videos

Anya is a freelance technology writer. Originally from Russia, she is currently a full-time Remote Worker and Digital Nomad. With a background in Journalism, Language Studies, and Technical Translation, Anya couldn't imagine her life and work without using modern technology on a daily basis. Always looking out for new ways to make her life and location-independent lifestyle easier, she hopes to share her experiences as a tech- and internet-addict through her writing. Read Anya's Full Bio

'ZDNET Recommends': What exactly does it mean?

ZDNET's recommendations are based on many hours of testing, research, and comparison shopping. We gather data from the best available sources, including vendor and retailer listings as well as other relevant and independent reviews sites. And we pore over customer reviews to find out what matters to real people who already own and use the products and services we’re assessing.

When you click through from our site to a retailer and buy a product or service, we may earn affiliate commissions. This helps support our work, but does not affect what we cover or how, and it does not affect the price you pay. Neither ZDNET nor the author are compensated for these independent reviews. Indeed, we follow strict guidelines that ensure our editorial content is never influenced by advertisers.

ZDNET's editorial team writes on behalf of you, our reader. Our goal is to deliver the most accurate information and the most knowledgeable advice possible in order to help you make smarter buying decisions on tech gear and a wide array of products and services. Our editors thoroughly review and fact-check every article to ensure that our content meets the highest standards. If we have made an error or published misleading information, we will correct or clarify the article. If you see inaccuracies in our content, please report the mistake via this form .

ChatGPT vs. Copilot: Which AI chatbot is better for you?

Since ChatGPT launched in November 2022, AI chatbots have been the talk of the internet. ChatGPT's abilities to generate text , talk conversationally, write code , and do so much more have driven huge demand for the chatbot. 

Naturally, seeing ChatGPT's massive success, other companies rushed to compete in the generative AI space . 

Also: The best AI chatbots: ChatGPT and other noteworthy alternatives

Shortly after ChatGPT's launch, Microsoft announced its Bing search engine  was getting an AI chatbot, known at the time as Bing Chat but later renamed to Copilot . Despite being designed for the same purpose, Copilot had some major advantages over ChatGPT, with the biggest perk being access to the internet for free.

In May 2024, however, OpenAI leveled the playing field, unveiling upgrades to the free version of ChatGPT that matched Copilot's features and then some. So, which chatbot should you use? To help make your decision easier, we compared ChatGPT (the free version) and Copilot.

You should use ChatGPT if...

1. you want to experience the hype for yourself.

Since its launch, ChatGPT has been the leading AI chatbot and has served as the blueprint for the many AI chatbot alternatives that have entered the space.

Also:  AI business is booming: ChatGPT Enterprise now boasts 600,000+ users

As a result, it has the most name recognition and popularity, and the hype is well deserved. ChatGPT is a capable chatbot that can provide insight and assistance on various topics, including technical areas such as  writing  and  coding . 

ChatGPT is currently free to use and open to everyone. Therefore, if you are curious about how an AI chatbot could benefit you, you might as well try the one that started the boom -- and find out what you like and need in a chatbot assistant. 

2. You want free access to OpenAI's latest model, GPT-4o

The most compelling reason to try ChatGPT is to experience GPT-4o. In May 2024, OpenAI unveiled its latest and most advanced flagship model -- GPT-4o. As the name implies, the model has the same intelligence as GPT-4, which is impressive because GPT-4 outperformed its predecessor on nearly every benchmark, including reasoning, coding, English, and more. 

Additionally, the "o" in the new model's title is a nod to its multimodal capabilities, which allow it to understand text, audio, image, and video inputs, and output text, audio, and images.

Also:  6 ways OpenAI just supercharged ChatGPT for free users

With the upgrade, free users can take advantage of features previously limited to paid users, such as getting responses from the web, uploading files and images, and accessing Memory and the GPT Store. 

Eventually, free ChatGPT users will also be able to use the new Voice Mode, supercharged with GPT-4o's video and audio capabilities, to provide a more conversational experience and use the context from their environment to provide voice answers. 

You should use Copilot if...

1. you want footnotes automatically added.

One of the biggest problems with ChatGPT is the inability to confirm the accuracy of its responses, as the tool does not provide sources. Even though the May update to ChatGPT made it possible for the chatbot to browse the internet, ChatGPT still only provides links in some instances.

Also:  AI taking on more work doesn't mean it replaces you. Here are 12 reasons to worry less

When you ask a question in Copilot, the chatbot automatically includes footnotes in its generated answers that lead you back to the source of its response. Click the footnote, and you will be sent directly to the web article in another tab. 

This capability is useful when you use the chatbot to learn more about a subject. It's easy to explore further by clicking the provided links, especially if you want to learn more about certain parts of the answer.

2. You want more visual responses 

Copilot resembles a search engine. The chatbot's responses include plenty of links and, in many instances, photos. The visual components add to the answers by providing context and making the user experience more engaging. The graphics the tool creates also often include additional information.

Alternatives to consider

Generative AI tools on the market offer different strengths. Here are others you can try:

Artificial Intelligence

Copilot pro vs. chatgpt plus: which is ai chatbot is worth your $20 a month, chatgpt vs. microsoft copilot vs. gemini: which is the best ai chatbot, what is copilot (formerly bing chat) here's everything you need to know.

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• Education, training and skills
• School curriculum
• Primary curriculum, key stage 2
• English (key stage 2)

Key stage 2 tests: 2024 English reading test materials

English reading test materials administered to eligible pupils at the end of key stage 2 in May 2024.

2024 key stage 2 English reading booklet

Ref: ISBN 978-1-83507-026-0, STA/24/8811/e

PDF , 12.6 MB , 12 pages

2024 key stage 2 English reading answer booklet

Ref: ISBN 978-1-83507-025-3, STA/24/8810/e

PDF , 437 KB , 20 pages

2024 key stage 2 English reading – administering the reading booklet and reading answer booklet

Ref: ISBN 978-1-83507-142-7, STA/24/8827/e

PDF , 236 KB , 8 pages

2024 key stage 2 English reading mark schemes

Ref: ISBN 978-1-83507-027-7, STA/24/8812/e

PDF , 833 KB , 36 pages

2024 copyright ownership: key stage 2 national curriculum tests

Key stage 2 English reading tests were administered in schools in May 2024. Test administration instructions and mark schemes are also provided.

Please refer to the copyright ownership report for details of how schools, educational establishments and third parties can use these materials.

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