WildDogz - Offers downloads, signup, and a forum. - http://wilddogz.com/index.php
Club {High Times} - List of members, a message board, chat room, and photo album. - http://home.bellsouth.net/p/s/community.dll?ep=16&groupid=195481&ck=
Buggy Pals - Lists event results and collects screenshots of a driving club. - http://buggypals.com
Cheerleaders - Forums and photo gallery for the group. - http://www.rainblood.com/tryst/cheerleaders/