Covers: 1800s-. A collection of core journals and books in the humanities, social sciences, sciences, and mathematics. Most journals are digitized back to the first date of issue. Note that most titles in these archival collections are only digitized after a three-to-five-year time lag so that recent issues are not always available through JSTOR.
JSTOR now includes ebooks, images, and primary sources as well as journals.

Covers: mostly 1990s- with some content back to the 19th century. A general research database that includes both popular magazines and scholarly journals. Offers academic and trade journals, popular magazines as well as some books, reports, and websites. The database features PDF content going back as far as 1887, with the majority of full text titles in native (searchable) PDF format. Searchable cited references are provided for some journals.

Covers: 1963-. A comprehensive source for U.S. and Canadian political, social, diplomatic, and economic history. Indexes and abstracts journal articles as well as books, book reviews, theses, and dissertations.