JSTOR (www.jstor.org) is a not-for-profit organization with a dual mission to create and maintain a trusted archive of important scholarly journals, and to provide access to these journals as widely as possible. Content in JSTOR spans many disciplines, primarily in the humanities and social sciences. For complete lists of titles and collections, please refer to http://www.jstor.org/about/collection.list.html.
PubMed was developed by the National Center for Biotechnology Information (NCBI). It was developed in conjunction with publishers of biomedical literature as a search tool for accessing literature citations and linking to full-text journals at web sites of participating publishers.