North American Drought: A Paleo Perspective
Explains how paleoclimatic data can provide information about past droughts and about the natural variability of drought over timescales of decades to millennia.
Provides drought defintions, types, and the most likely places in the U.S. where droughts occur.
Stormfax: Drought Guide
Provides information on the cause and effects of droughts. Website also offers water conservation tips and drought links.
Western Drought Coordination Council
Advocating a balanced, open process to reduce the effects of drought and to promote economic and environmental sustainability.