I'm a linux freak, a musician, learning to unicycle and I'm currently learning C as well. I also ran into a great page that shows how to use Emacs as a window manager! Lots of fun!! By the way, StackExchange is a better community than Wikipedia. Wikipedia could stand to learn a lot from Stack exchange (less bureaucracy, privileges are earned, etc....).
StackExchange.....better than Wikipedia, anyday of the week!