I've looked at this site on Arduino Playground http://www.arduino.cc/playground/Learning/DMX
But it seems that most of it is out of date (some links are dead, information doesn't seem up to date). Is there a more recent site someone can point me to, or is there a way I can get in touch with the right people to update the Arduino Playground with more DMX-512 knowledge?
Also how can I get in touch with fellow people that are interested in the DMX-512 standard using Arduino? Or find some cool projects for beginners to try, so I can familiarize myself with the topic more?