JSTOR 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. JSTOR offers researchers the ability to retrieve high-resolution, scanned images of journal issues and pages as they were originally designed, printed, and illustrated. The journals archived in JSTOR span many disciplines. JSTOR is not a current issues database. Because of JSTOR's archival mission, there is a gap, typically from 1 to 5 years, between the most recently published journal issue and the back issues available in JSTOR. ... [according to site editor's information]
Project MUSE is a collaboration between libraries and publishers providing 100% full-text, affordable and user-friendly online access to over 350 high quality humanities and social sciences journals from over 60 scholarly publishers. Access is restricted.
[according to site editor's information] [changed]
The "Quarterly Index of African Periodical Literature" is an index of bibliographical references to articles from over 300 selected periodicals (mostly scholarly) which are acquired from 29 African countries. Now available online within AfricaBib (ASC LEiden) having >200,000 articles & links in over 500 Journals. ... [according to site editor's information & editors ilissAfrica]