PAN Pesticides Database – Comprehensive pesticide product information maintained by Pesticide Action Network.

EXTOXNET– Older pesticide database maintained by Oregon State University and the University of California – Davis.

Agency for Toxic Substances and Diseases Registry- Profiles maintained by ATSDR, part of the Centers for Disease Control, on a wide variety of info on toxic threats.

EnviroMapper - an interactive Web site that maintains geographic data about pollutants in our air, soil and water, and a special tool for environmental justice sites.

Scorecard – Green Media Toolshed’s database, which compiles much of the information into a usable form.