A multidisciplinary database of more than 8,500 fulltext periodicals with pdf content going back as far as 1887. Includes indexing and abstracting for more than 12,500 periodicals.
JSTOR is a shared digital library that includes the fulltext of more than 2,000 academic journals, dating back to the first volume published. Coverage varies depending on the journal title.
Provides full-text access to more than 400 scholarly journals in the arts and humanities, social sciences, and mathematics. Coverage varies by publication; the earliest date of inclusion is 1990.
Fulltext access from 1999 to a subset of the over 450 journals in 40 disciplines. Coverage 1999-present depending on source.
Offers more than a quarter of the world's scientific, medical and technical information
online. Coverage varies by title. Most fulltext begins 1995.
An academic version of Google providing a simple way to broadly search for scholarly literature. Coverage dates vary.