The topic of circuit bending and the speak and spell came up at some point last night.

Wanted to post Reed Ghazala's site, he's a circuit bending pioneer, been doing it since the 60's.

http://www.anti-theory.com/

And here's a video of him.

http://www.youtube.com/watch?v=Wy1mdLpy0SY

He also has a book out and it is relatively well stocked at bookstores, meaning you can expect to find it in town if you are interested.

Circuit Bending By Reed Ghazala