Hi everyone,
For those of you who leave your computers on 24/7 (or even those who don't), this is a great way to donate unused computing power for a good cause. You can join projects that you think are worthwhile and help advance scientific knowledge.
I believe that the software is now officially part of the Debian Linux distribution, but for the rest of you it can be downloaded here:
http://boinc.berkeley.edu/
(it's also available for M$ Windows).
Have fun.