Check out these cool links for more information on amphibians:

Frogs!

Frog Watch Ontario

NEARCTICA - Explore the Natural World of North America

COSEWIC - Subcommittee for Reptiles and Amphibians

COSEWIC - The Committee on the Status of Endangered Wildlife in Canada

Cool Pics of Frogs and Toads

North American Amphibian Monitoring Program (NAAMP)

Virtual Zoo

University of Michigan's Museum of Zoology