AtFantasy
   Collection of reader-submitted characters, campaigns, articles, rules, and links.
   http://www.atfantasy.com/

DnDResources
   Resource library of downloadable game materials: character sheets, forms, articles, programs, campaign information, games, websites, online utilities, and fantasy fonts.
   http://www.dndresources.com/

The D20-Forge
   A user submission site containing different items, ideas, campaigns, stories, and rules.
   http://www.d20forge.com/