Web resources: Rhetoric and Composition Research Guide

AmericanRhetoric.com
Created and maintained by Michael Eidenmuller, University of Texas at Tyler. Texts and videos of speeches, movie speeches, sound clips with rhetorical figures, definitions, relevant passages from Plato and Aristotle. Award-winning resource. Includes a page of definitions of rhetoric. 

CompFAQ
A wiki-based compendium of syntheses based on commonly asked questions in the field; ongoing. 

CompPile
1939-Current: an inventory of publications in post-secondary composition, rhetoric, technical writing, ESL, and discourse studies. 

E-Server
An arts and humanities e-publishing co-op based at Iowa State University where hundreds of writers, editors and scholars gather to publish over 35,000 works free of charge. There are sections on multimedia, rhetoric, and technical communication. 

Silva Rhetoricae
By Gideon Burton, Brigham Young University. A comprehensive and flexible handbook of rhetorical terms that is "intended to help beginners, as well as experts, make sense of rhetoric, both on the small scale (definitions and examples of specific terms) and on the large scale (the purposes of rhetoric, the patterns into which it has fallen historically as it has been taught and practiced for 2000+ years)."