Unpaywall is a browser extension that works with Chrome and Firefox. Unpaywall points researchers to legal open access versions of articles. It is also integrated with several research databases available to the UNLV community including Scopus, Web of Science, and Dimensions (all available from the Library Databases list).
Once the browser extension is installed, researchers will see a color coded lock on any record where a Digital Object Identifier (DOI) is available.
Choosing OA Nerd Mode
You may choose to adjust the extension settings (right click on the extension at the top of your browser window). Doing so gives you additional information about the open access articles:
Free, legal research articles delivered instantly or automatically requested from authors.
The open access button assists researchers in requesting copies of works that are not currently open access. If you discover an article with a paywall you may wish to request that the author make an open access copy available. The button works by checking to see if there is an open access copy, and if not prompting you to complete a few short questions about the work and the need for the article, and then a request is sent to the author on your behalf. The hope is that authors will choose to make their work available via a legal, open access route.
Note: If you are affiliated with UNLV, you have many ways for obtaining works behind paywalls including accessing library paid subscriptions from off campus and interlibrary loan. Check the library website to learn more about these services.
There are many individual OER sources available. The widget below, developed by George Mason University, allows searching through many of them. The list of sources included in the Mason OER Metafinder are listed (and linked) below:
Using the Mason Open Metadata widget will open a new window in your browser. If you prefer to search directly from your desktop go to https://mom.gmu.edu/.
The University Libraries provides a guide to finding data, which includes free and open sources as well as UNLV Libraries subscribed data resources: