The ATLA Religion Database with ATLASerials is produced by the American Theological Library Association (ATLA), and covers bibliographical records of articles and book reviews, with available full text from more than 230 journals, with a coverage starting in 1908.
The Open Access Digital Theological Library offers about 200'000 books in religious studies and related disciplines from publisher websites, institutional repositories, scholarly societies, archives, and stable public domain collections. Freely available for download.
The ESBCO Religion & Philosophy Collection provides a comprehensive full-text source of content related to religion and philosophy, covering topics such as world religions, major denominations, biblical studies and more.
The Index Theologicus IxTheo covers published literature theology and religious studies from the entire world. It is based on the literature collected at the Tübingen University Library in theology and religious studies. The collection covers about 2000 currently published periodicals, including congress publications, 75 % originating from non-German countries.
The World Christian Database, produced by the Center for the Study of Global Christianity, Gordon-Conwell Theological Seminary, includes detailed information on 9,000 Christian denominations and on religions in every country of the world.