INTERNATIONAL MARMOT NETWORK
The Shrew Site
The Dormouse Hollow
Mammalogists on E-mail
CAUZ (Consortium of Aquariums, Universities and Zoos) Network Members with an Interest in Mammals: SEARCH for members
Smithsonian: Zoology. Selected links to sites hosted by Smithsonian Institution museums and organizations.
Mammal Species of the World (National Museum of Natural History, Smithsonian Institution)