International rat and mouse club for show and pets.

Rat and Mouse Club of America. Includes club information, events, contests, merchandise, rat standards, vet recommendations, and magazine subscription information.

Founded in 1916. Describes varieties of both animals and includes digital library, book list, and membership information.

Local chapter in California. Includes a list of local shelters.

Club information and links to resources, as well as Furry Friends Orphanage in Southern California.

Group of individuals dedicated to the prevention of small mammal cruelty and abuse. Information on their activism, photographs of rats for adoption, contact information for rescuing retired lab rats, and links to other rat rescues.

Promotes rats and mice as companion pets. Includes a membership application [PDF format], an event calendar, rescue information, and a list of recommended vets.