Yahoo! Groups: rpgwritersclub - The RPG Writers Club, a message board and chat room for amateur game designers. - http://games.groups.yahoo.com/group/rpgwritersclub/
Soap - The game for those who can't get enough of weird soap opera drama and twisted plots. - http://www.nettrash.com/users/crayne/soap.html
Action System - The multi-genre, open license role-playing game system from Gold Rush Games. - http://www.action-system.com/
Free Roleplaying Community - The Free Roleplaying Community (FRPGC) is dedicated to free content advocacy for the roleplaying gamer community, and supports the publishing of roleplaying material under the GNU Free Documentation License. - http://www.freeroleplay.org/
Infinite Quest the Game - Free RPG, based on Heroquest. Free downloadable tiles, adventures, manuals and such. A must see for starting players and Gamesmasters. - http://www.infinitequest.net
Borderline Publications - Home of three system for different ages: Spy-Fi (60's), Pirates (1660's) and Chronos (Varies). - http://www.sreilly.pwp.blueyonder.co.uk/
Faunae - A free system about animals and their exploits in a world inspired by both fables and realistic nature. - http://koti.mbnet.fi/~atolonen/faunae/faunae.html
Syndicate - Dark future roleplaying using the RIP system. - http://www.cs.helsinki.fi/u/marjola/syndicate/
Heavy Ordnance - Using the Reflex System players live out their childhood fantasies. - http://www.homebrew.net/games/heavy.html
Bedlam - A Megalomaniacal Storytelling Game. - http://www.realms.org.uk/bedlam/
Harlekin-Maus - Monthly releases of small games. - http://www.harlekin-maus.com/index.html
Jons Page'O'Stuff - The site offers five free games. Three RPG's (one near-future cyberpunk type, one dark ages and one star trek type) and two quick-play board games. - http://www.urbanmyth.karoo.net/