A Dose of Dowsing
Toiling through a lengthy period of drought, California farmers are turning to a classic esoteric solution: dowsing. Also known as "water witches," dowsers have seen demand for their services grow as word of their uncanny abilities spreads. More from the New York Times(1).
1. http://www.nytimes.com/2008/10/09/us/09water.html

