Published in 2005. Note that some of the articles and bibliographies have not been updated since the 1987 edition. Also available in print format. Provides good introductory articles with suggestions for further reading.
4 volume encyclopedia. Has book chapter length entries on many topics (religious groups, concepts, gods and goddesses etc.). Each entry ends with a significant bibliography to lead you to other sources. Check the table of contents for the topics covered.
This resource is only a bibliography. It is arranged by topic and provides suggestions for general background as well as more specialized aspects of the topic.