Directory of Open Access Journals (DOAJ)An online index of close to 11,000 open access journals from 13 countries. Many journals are peer-reviewed. Journals and articles can be browsed or searched by keyword or advanced search options.
Elsevier Open Access JournalsAll articles in open access journals which are published by Elsevier have undergone peer review and upon acceptance are immediately and permanently free for everyone to read and download.
ETS Test LinkThe Test Collection at ETS is a database of more than 25,000 tests and other measurement devices most of which were created by authors outside ETS. It makes information on standardized tests and research instruments available to researchers, graduate students and teachers. With information about tests from the early 1900s to the present, the Test Collection at ETS is the largest compilation in the world. This database also contains 1200 tests that can be purchased for use in research.
JSTOR Open ContentProvides access to “hundreds of thousands of articles in the public domain” in the Humanities, Social Sciences, Sciences, and Medicine. To search effectively, select Advanced Search and limit to Access Type: Content I can access.
OAIsterhosted by OCLC, who also maintains Wordcat.org, this database is a cooperative open library catalog of over 30 million records from more than 1,500 sources. Users can use advanced search features to search open access resources in full-text through this one, easy to use search interface.
PubMedPubMed is a service of the U.S. National Library of Medicine which includes over 23 million citations for biomedical literature from MEDLINE, life science journals, and online books.
WorldCatSearch library catalogs from around the world. Use this database to locate resources in your local libraries
Social Science Research Network (SSRN)open repository of abstracts for working papers and forthcoming publications in all areas of social sciences, with an Electronic Paper Collection of full-text documents. Organized by Research Network subject areas for browsing or searching.