The Catcher in the Rye Pages
http://www.euronet.nl/users/los/tcitr.html
This site includes an extensive character list for the novel as well as trivia and information about censorship of the novel.
Salinger.org
This site includes a Caulfield family tree linking the characters in The Catcher in the Rye to other stories by Salinger in which they appear.
Catcher in the Rye Study Guide
http://www.bellmore-merrick.k12.ny.us/catcher.html
A brief study guide with main characters and a summary of themes.
Wikiquote from Catcher in the Rye
http://en.wikiquote.org/wiki/The_Catcher_in_the_Rye
Collection of famous and notable quotes from Salinger's novel.