IMDb: Undeclared
Cast, crew, and production information.
http://imdb.com/title/tt0273028/

Television/ Without Pity: Undeclared
Humorous episodes guides and interviews with cast and crew members.
http://televisionwithoutpity.com/show.cgi?show=82

TV.com: Undeclared
Episode guide and cast list.
http://www.tv.com/undeclared/show/2359/summary.html

Undeclared
Official DVD site with scripts, video clips, audio downloads, and links.
http://www.undeclaredonline.com/

Dallas Observer: Back to School
Article by Robert Wilonsky discussing the show with producer Judd Apatow. (August 30, 2001)
http://www.dallasobserver.com/issues/2001-08-30/stuff.html

Modern Humorist: The Freakiest Geek
Interview with Judd Apatow about Undeclared and Freaks and Geeks. (August 13, 2001)
http://www.modernhumorist.com/mh/0108/apatow/