The following links are meant to be helpful resources. I do not formally endorse any product.

General Herpetile Information/Resources
AmphibiaWeb -  provides information on amphibian declines, natural history, conservation, and taxonomy
HerpMapper - gathers and provides information on herptile distributions
Herpetological Co​nservation and Biology - open access journal

American Society for Ichthyologists and Herpetologists
Herpetologists League
Society for the Study of Amphibians and Reptiles
Partners in Amphibian and Reptile Conservation

Citizen Science
Frog and Toad surveys - all states conduct citizen-led frog and toad surveys. Contact your local DNR or similar state agency for more information

GIS Mapping:
QGIS - free open source GIS mapping
The National Map - GIS map layers from USGS
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