Amphibian Checklist and Identification Guide - Taxonomic checklist for North America north of Mexico and detailed accounts, including photos and range maps, for dozens of species.
Amphibian Declines in Australia - Research into the nature and causes including bibliography of published and unpublished material.
Amphibian Species of the World - A searchable catalog of the recognized amphibian species of the world with synonymies and references to the taxonomic literature.
Amphibians of Hiroshima - Information and photos of the 6 species of salamanders and 13 frogs in Hiroshima, Japan.
Amphibians of Panama - Full checklist with images and descriptions for many species.
AmphibiaWeb - Source for amphibian data and conservation resources.
ARMI National Atlas for Amphibian Distributions - A compilation of current and historic records of amphibian occurrences in the United States, with range maps for each species to the county level. From the Amphibian Research and Monitoring Initiative.
Class Amphibia - Taxonomy list of Orders Anura, Gymnophiona and Urodela, with some images of species.
Connecticut Amphibians - Photos and life histories of the state's frogs and salmanders; recordings of frog calls.
Discover Canada's Amphibians - Explores amphibian morphology, ecology and evolution. All Canadian species are described in-depth.
Froghoo! from Amphibian Conservation Alliance - The internet's only search engine for amphibian conservation, biology, management, education, policy, breeding, and care information, with links to more than 1000 web sites, news articles, background papers, and books.
Frogs.org - Amphibian Conservation Alliance site with information and resources related to amphibians and amphibian conservation in the USA.
Global Amphibian Assessment - GGA is the first-ever assessment of the conservation status of the world's 5,918 known species of frogs, toads, salamanders and caecilians and provides a searchable database.
Living Amphibians - Introduction to the taxonomy of Amphibia, including Salientia (frogs and toads), Caudata (salamanders and newts), and gymnophiona (caecilians).
Livingunderworld - Amphibian information resource, with species databases, captive care guides, articles, links, and photos.
