Alley Cat Allies, www.alleycat.org

American Society for the Prevention of Cruelty to Animals, www.aspca.org

Dogs Deserve Better, www.dogsdeservebetter.com

Humane Allliance, www.humanealliance.org

Humane Society of the United States, www.hsus.org

Petco Foundation, www.spayusa.org

Pet Finder, www.petfinder.com

Pet Smart Charities, www.petsmartcharities.org