Global Amphibian Assessment
- GGA is the first-ever comprehensive assessment of the conservation status of the world's 5,918 known species of frogs, toads, salamanders and caecilians and provides a searchable database.
- http://www.globalamphibians.org/

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.
- http://www.npwrc.usgs.gov/resource/herps/amphibid/

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.
- http://www.pwrc.usgs.gov/armiatlas/

Amphibian Declines in Australia
- Research into the nature and causes including bibliography of published and unpublished material.
- http://www.jcu.edu.au/school/tbiol/zoology/herp/decline/decl.shtml

North American Reporting Center for Amphibian Malformations
- Data and information on the issue of malformed amphibians, with an emphasis on North American occurrences.
- http://frogweb.nbii.gov/narcam/

Amphibians of Panama
- Full checklist with images and descriptions for many species.
- http://home.earthlink.net/~itec/Amphibian.html

Order Anura
- Brief description of the order and its families, with representative photos for each family.
- http://www.abdn.ac.uk/~nhi708/classify/animalia/chordata/amphibia/anura/index.html

Class Amphibia
- Taxonomy list of Orders Anura, Gymnophiona and Urodela, with some images of species.
- http://home.earthlink.net/~itec/Amphibia.html

Livingunderworld
- Amphibian information resource, with species databases, captive care guides, articles, links, and photos.
- http://www.livingunderworld.org/

Living Amphibians
- Introduction to the taxonomy of Amphibia, including Salientia (frogs and toads), Caudata (salamanders and newts), and gymnophiona (caecilians).
- http://tolweb.org/tree?group=Living_Amphibians&contgroup=Terrestrial_Vertebrates

AmphibiaWeb
- Source for amphibian data and conservation resources.
- http://elib.cs.berkeley.edu/aw/

Discover Canada's Amphibians
- Explores amphibian morphology, ecology and evolution. All Canadian species are described in-depth.
- http://www.aquatic.uoguelph.ca/amphibians/amphframes.htm

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.
- http://www.frogs.org/froghoo/index.asp

Amphibian Species of the World
- Comprehensive searchable catalog of the recognized amphibian species of the world with synonymies and references to the taxonomic literature.
- http://research.amnh.org/herpetology/amphibia/index.html

Amphibians of Hiroshima
- Information and photos of the 6 species of salamanders and 13 frogs in Hiroshima, Japan.
- http://www3.ocn.ne.jp/~herpsgh/amphibians.html

Frogs.org
- Amphibian Conservation Alliance site with information and resources related to amphibians and amphibian conservation in the USA.
- http://www.frogs.org/