Boston cross
Boston cross/boston cyclocross association is a club devoted to the cyclocross lifestyle, cyclocross racing, cyclocross clinics, teaching and learning about 'cross, and travel to nationals, worlds, and beyond.
http://www.bostoncross.com/
Crosscrazy
Crosscrazy
http://crosscrazy.freehomepage.com/
Gorp
Gorp
http://www.gorp.com/gorp/activity/biking/cross.htm
Hawaii
Cyclocross and cyclo-cross for the masses with aloha spirit
http://members.tripod.com/cyclocross/
Napavelo
Cyclocross information, training guides, and schedules.
http://members.aol.com/napavelo/cross.htm