The archives of the official website: Hedwig and the Angry Inch Rock the Web
Lots of info about musical and movie: Hedwig in a Box – Hedwig and the Angry Inch Fan Club
The official movie site: Hedwig and the Angry Inch
A wonderful fan site: A Transmission on the Midnight Radio
Another good fan site for the stage show: Standing before you
A fan site for the U.K. production: Wig on the Web