Batman: Yesterday, Today, and Beyond - Fan page covering the character in comics, film, television and animation. Featuring news, biographies, animation and history.
Collected Issues of the Dark Knight - Home of the Batman comic database. Includes information on who is featured in them, who created them and what story archs they are part of.
The Dark Knight - Devoted to Batman, the Dark Knight Detective. Features information on many aspects of the comics world of Batman.
Golden Age Batman Site - Resource on the Batman of the 40's, 50's and 60's. Includes an index to original runs and reprints, a cover gallery, a rogues gallery, links to other Golden Age sites, and a Batman mailing list. The Comic Book Value Calculator, an online comic collector assessment tool, is also available.
The Riddler - Interactive animated stories using Flash and JavaScript featuring Batman's deadliest foes, and graphic puzzles presented by Edward Nygma, Gotham's genius.
Shadows of the Knight - An exploration of Frank Miller's 'Batman: The Dark Knight Returns' and 'Batman: The Dark Knight Strikes Again'. Has a sketchbook, articles, and audio interview, image gallery, and sequel news.
TheBatSquad.Net - Covers Batman and related titles, including continuity in cross-overs and major events, trade paperback collections, character profiles, and wallpapers.