USGS Biological Resources Division tracks developments in the malformation and decline of amphibian populations in North America and elsewhere. biology.usgs.gov/frog.html
Pictorial tour of herps in the Trans-Pecos and Big Bend regions of West Texas. Photos and notes on most of the species of herpetofauna found in the region. herpo.com/trans-pecos
A source of information for reptiles and amphibians of the Pacific Northwest, presented by the University of Oregon Biology Department. darkwing.uoregon.edu/~titus/herp
Information on herpetological research activities, plus images, sounds, and species descriptions of reptiles and amphibians of the Savannah River Site in South Carolina. www.uga.edu/srelherp
Contains translations of scientific names, list of original description citations, and biographies of persons honored in the nomenclature. ebeltz.net/herps
Introduction to the reptiles and amphibians of the Peruvian Amazon, with many images. Also includes sections on people and places, travel, and articles from Reptiles magazine by Matt Russell. www.amazonherp.com