Global Zoo Directory: The Conservation Breeding Specialist Group provides the names and contact information for zoos around the globe.
Petting Zoo Directory: Petting zoos are listed by state or country and then city with short descriptions and links. Also has information about setting up a petting zoo and animal quizzes.
The Good Zoo Guide Online: Provides descriptions and information on zoos worldwide. Public can contribute to the guide reviewing and adding zoos to the online database.