Humane Society of Cozumel: Runs a free spay-neuter program and offers at-cost vet services, an adoption program, and free euthanasia. Wish list and contact details are presented.
Pet Guardian Angels of America: Listing of pet adoption and rescue organizations in the United States and Canada. Includes rescue stories and homecheck form.
PetHarbor: Search for lost, stray, and adoptable pets in the United States and Canada. Features listings from shelters and rescue organizations.