The Best Pet Adoption Websites
http://www.petfinder.com One can find any kind of pet that he or she is looking for on this website. Along with cats and dogs, this site includes reptiles, horses, pigs and small and furry animals.
http://www.pets911.com This site features a lost and found section for pets as well as animals that are up for adoption. Endorsed by Animal Planet.
http://www.avianrescue.org Specifically for bird adoption, the shelters are organized by state rather than zip code.
http://www.petharbor.com Covers shelters in Canada and U.S.
http://www.creatures.com/USBR.html Set up by dog breed as well as by state
http://worldanimalnet.org/new.asp Fetures pet adoption resoures worldwide. Endorsed by the UN
Always remember it is always best to spay or neuter your pet to help stop the overpopulation of unwanted animals!