Authors will often upload pre-publication manuscripts of articles to repositories or other platforms for open access. These tools can assist researchers with limited institutional access to find legally accessible free versions. Also ask your local library about interlibrary loan services.
Check for open repository or other availability in the Google Scholar results. It may show as a PDF link on the right, or among the versions (when available, listed in the links at the bottom of the entry).
A Chrome/Firefox browser plug-in from Clarivate Analytics that offers free access to over 20,000 open access sources, as well as providing access via Purdue institutional subscriptions.
Articles in physics, mathematics, computer science, quantitative biology, quantitative finance, statistics, electrical engineering and systems science, and economics. Preprints in biology.
Open access preprint community specializing primarily in social sciences, including economics, law, corporate governance, and humanities. (Owned by Elsevier)
Bibliographic database based on RePEc (Research Papers in Economics). Includes published articles and freely available preprints and working papers in economics.
WAC Clearinghouse is an open-access publishing collaborative that is supported by the efforts of more than 200 scholars who serve in various editorial roles, including journal and book series editors, editorial staff, reviewers, and editorial board members.
