American Animal Hospital Association (AAHA) is an international association of veterinary care providers.
http://www.aahanet.org


American Veterinary Medical Association (AVMA) provides a site as a source of general information on animal related topics.
http://www.avma.org


California Veterinary Medical Association (CVMA) is a site which provides veterinary information for veterinarians and public.
http://www.cvma.net