JSTOR (Journal Storage) is a digital library and an archival collection of 7 million scholarly articles for more than 2,200 academic journals, dating back to the first volume ever published, along with thousands of monographs, and other material. It provides electronic access to back runs (old issues) of journals, beginning with volume 1 of each journal and stopping 2 to 5 years from the last published issue of any journal. Also, JSTOR offers more than 35,000 eBooks that support academic research in core disciplines. In addition, it provides access to more than 2 million primary sources across four collections, supporting research and teaching in the humanities, social sciences, and sciences.

Topics covered in the collection include journals in almost every discipline including: African American Studies, African Studies, American Indian Studies, Anthropology, Aquatic Sciences, Archaeology, Architecture, Art and Art History, Asian Studies, Biological Sciences, Botany and Plant Sciences, Business, Classical Studies, Ecology and Evolutionary Biology, Economics, Education, Women's Studies, Film Studies, Finance, Folklore, General Science, Geography, History, History of Science and Technology, Language and Literature, Latin American Studies, Law, Mathematics and Statistics, Middle East Studies, Music, Paleontology, Performing Arts, Philosophy, Political Science, Population Studies, Psychology, Public Policy and Administration, Religion, Sociology.

Since JSTOR is intended to be an archive, it does not include current issues of journals. The most recently published issue of any current journal will not appear in JSTOR until 2-5 years following the publishing date