*not* the official web site (Score 4, Informative)

Needless to say, something as odd as circuit bending doesn't have an "official" web site. However, the person widely credited with starting and popularizing circuit bending is Reed Ghazala, and his site is http://www.anti-theory.com/. Got to give credit where credit is due, folks... More information on bending and other amazing experimental musical instruments is available at http://www.oddmusic.com.