Informal Fallacy Webpages

From Philosophy Pages, broken down into fallacies of relevance, presumption, and ambiguity

http://www.philosophypages.com/lg/e06a.htm

http://www.philosophypages.com/lg/e06b.htm

http://www.philosophypages.com/lg/e06c.htm

Fallacy Files

http://www.fallacyfiles.org/

Stephen Downes’ Webpage

http://onegoodmove.org/fallacy/toc.htm