Cockapoo
Breeders, Clubs, Pets, Rescues and Shelters, CockApooNu, Cockapoos of the World, Cockapoos of World Joining, The Spoodle (Cockapoo) Discussion Forum
Labradoodles
Breeders, Clubs, Pets, American Doodle Registry, Article on Labradoodles, Doodle Breeders' Discussion Forum, Doodle Discussion Forum, Doodle Tour America, Labradoodle, Labradoodle Chit Chat, Labradoodle: About.com, Webring: Goldendoodle and Labradoodle
American Bullnese Association
Breed standard, list of approved breeders, and a photograph gallery.
Yahoo Club: New Breed Development
Discussion of developing new breeds from purebred bloodlines.