Folding@Home
From XKCD Wiki
We all know that #xkcd is a place where many awesome things happen, and just about every geek on the internet has heard of the comic. So why don't we show off how awesome we really are by joining up for something that costs us nothing, and advances science? Join the #xkcd Folding@Home team. To download the client, go here
When setting up, make sure to enter 158267 as the team number so your work is added to the teams. When it asks for a password, leave it blank. If you have any question, contact nameless on IRC
To see the team stats, simply check here