Yahoo! Groups : The Tower Bible - Discussion group for The Dark Tower by Steven King. - http://groups.yahoo.com/group/the_tower_bible/
Wikiquote - The Dark Tower Series - Quotations from the series of novels by Stephen King. - http://en.wikiquote.org/wiki/The_Dark_Tower_Series
The Dark Tower - Official Web Site - Summary of series, information on artwork and illustrations and characters. Also provides a glossary of High Speech terms found in the books. [Requires Flash] - http://www.stephenking.com/darktower/
Needcoffee: The Dark Tower - Offers dream cast listing for the series as well as synopsis of a proposed screenplay - http://www.needcoffee.com/html/darktower.html
The Road to the Dark Tower - Description and discussion of The Road to the Dark Tower, an authorized exploration of King's Dark Tower series. - http://www.bevvincent.com/DarkTower.html
SKB's Overview - Information on each of the books in the series, including brief summaries. - http://users.cybercity.dk/~nmb21186/tdt.htm
Gilead - Stephen King's "The Dark Tower" - A comprehensive look at Stephen King's "The Dark Tower". Trivia contests, search the books, artwork, characters. - http://www.thedarktower.net/
Stephen King's Dark Tower I: The Gunslinger - Information on the Dark Tower series written by Stephen King. Includes a brief intro into the series. - http://www.cdickens.com/articles/gunsl.htm
Dark Tower Trivia - Trivia site for the Stephen King Dark Tower Series. - http://dttrivia.iwarp.com/