| 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| Amphibian Declines in Australia: Research into the nature and causes including bibliography of published and unpublished material.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: Comprehensive 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. |
| 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. |
| North American Reporting Center for Amphibian Malformations: Data and information on the issue of malformed amphibians, with an emphasis on North American occurrences. |
| Order Anura: Brief description of the order and its families, with representative photos for each family. |
Classical
