http://nanowrimo.org
Awesome event. Write a 50 000 word novel in a month. Not easy, not difficult, hell of a lot of fun. Basically 2000 words a day. I got about half way last year before I realized that I really, really needed to study.
Anyway, I suggest everyone check it out. Also, if you do decide to try it out, feel free to use this service on my site:
http://andrewlb.com/nanowrimo
Seriously, try it out. More people who know about nanowrimo, the better.