4 links
American Fancy Rat and Mouse Association
afrma.org
International rat and mouse club for show and pets.
Australian Mouse and Rat Information Service
geocities.com
AMRIS international mouse and rat welfare and pet care information service and newsletter. Rodent adoption shelter to re-house unwanted domestic rats and mice.
Bay Area Rat and Mouse Club of America
rmca.org
Local chapter in California. Includes a list of local shelters.