University of California
Regents of the University of California: Amphibia Web
AmphibiaWeb, a site inspired by global amphibian declines, is an online system that allows free access to information on amphibian biology and conservation. This site is filled with amphibian facts, a glossary of terms, species numbers,...
Other
K 3 Learning Pages: Reptiles and Amphibians
Come and discover more about reptiles and amphibians when you explore this awesome resource. This site is filled with useful links.
Other
Quantum Conservation: Amphibian Index
A good overview and index of all the classes and species of amphibians, including sub-classes, orders, and characteristics.