JSTOR content is provided by more than 900 publishers. and includes more than 1,900 journal titles, in more than 50 disciplines. Each object is uniquely identified by an integer value, starting at
In addition to the main site, the JSTOR labs group operates an open service that allows access to the contents of the archives for the purposes of corpus analysis at its Data for Research service. This site offers a search facility with graphical indication of the article coverage and loose integration into the main JSTOR site. Users may create focused sets of articles and then request a dataset containing word and n-gram frequencies and basic metadata. They are notified when the dataset is ready and may download it in either XML or CSV formats. The service does not offer full-text, although academics may request that from JSTOR, subject to a non-disclosure agreement.
JSTOR Plant Science is available in addition to the main site. JSTOR Plant Science provides access to content such as plant type specimens, taxonomic structures, scientific literature, and related materials and aimed at those researching, teaching, or studying botany, biology, ecology, environmental, and conservation studies. The materials on JSTOR Plant Science are contributed through the Global Plants Initiative (GPI) and are accessible only to JSTOR and GPI members. Two partner networks are contributing to this: the African Plants Initiative, which focuses on plants from Africa, and the Latin American Plants Initiative, which contributes plants from Latin America.
JSTOR launched its Books at JSTOR program in November 2012, adding 15,000 current and backlist books to its site. The books are linked with reviews and from citations in journal articles.