Herpetology is the study of amphibians and reptiles (i.e. herps), and those who work in the field are called herpetologists.
Below are some useful links.
How to be a Herpetologist: suggestions and recommendations on pursuing a career in herpetology, written by SSAR members.
Herpetology Hotline: a free service providing answers to your questions about amphibians and reptiles.
Herpetology Resources: links to good online sources of information about amphibians and reptiles.
Regional Societies: a comprehensive list of regional herpetological societies.