Offers photographs, information, articles, and opinions about dogs, cats, birds, reptiles, horses, amphibians, small mammals and aquarium fishes. Includes a special section for kids 13 and under... 

http://www.petstation.com/

Provides information about caring for birds, cats, dogs, reptiles, and various small pets. Includes message boards, games, and award-winning pet photographs... 

http://www.hartz.com/

Tells about the love a girl has for all the pets and animals in her home. Send pictures of your pets to post on her website... 

http://www.erinsanimals.com/

Includes information about dogs, horses, ponies and birds. Also includes a message board and pictures to colour... 

http://www.canaryzoo.com/

How to take care of various types of pets. Includes dogs, cats, birds, rodents, and reptiles... 

http://www.animalhospitals-usa.com/

Features information about cats, dogs, horses and small pets. Also has leaflets, articles, groups, and discussion forums... 

http://www.allaboutpets.org.uk/