ÉCLAT: The Essential Comparative Literature And Th - http://ccat.sas.upenn.edu/Complit/Eclat/
Resources and links for comparative literature studies.
Glossary of Literary Terms and Handbook of Rhetori - http://www.uky.edu/AS/Classics/rhetoric.html
Features both the glossary and the handbook, with searchable entries for common terms and definitions
Swirl: Your Guide to Post-Millennial Paradigms - http://www.sou.edu/English/IDTC/Swirl/swirl.htm
Warren Hedges, who teaches in the English department at the University of Southern Oregon, has created a large and table-heavy Web site devoted to theory. Includes timelines, definitions of terms and prominent issues, theoretical controversies, and the Who's Who In Theory page described below.
Voice of the Shuttle: Literary Theory Page - http://vos.ucsb.edu/index.asp
An exhaustive collection of annotated links about literary theory, past and present. Back up a bit to be overwhelmed by the Voice of the Shuttle parent site.