Fossil Record of the Amphibia. Information on extinct amphibians.

Introduction to the Tetrapoda. Information on tetrapod fossils, natural history, ecology, systematics, and morphology,

International Reptiles and Amphibian Websites Directory. "Herp Hot Links."

Amphibia. From Biosis, any links with information on amphibians.

Animal Diversity Web, University of Michigan. Class Lissamphibia. Links containing information and pictures of caecilians, frogs and toads, and salamanders is included.

Subphylum Vertebrata, Class Amphibia, from the University of Minnesota.

Society for the Study of Amphibians and Reptiles. Resources, links, information on conservation and more.

American Society of Ichthyologists and Herpetologists. Links, also information on their publication, Copeia.

Savannah River Ecology Laboratory's Herpetology Lab Home Page. The University of Georgia's SREL has been involved in research on reptiles and amphibians since the 1960s. This site has pictures, research summaries, and links to more information on "herps."

North American Amphibian Monitoring Program. Information and links to information on the study and conservation efforts for amphibians. Supported by the USGS and the Patuxent Wildlife Research Center.

Great Lakes Declining Amphibians Working Group. A plethora of links available from this site.

The "Whole Frog" Project. This was designed at the Lawrence Berkeley National Laboratory using X-ray CT imaging, MRI imaging and other visualization techniques to make clickable 3-D images of the frog and its internal organs.

Frog Dissection Guide. A guide only, no photographs or diagrams, yet there is much material on taxonomy, and description of structure and function.