If you don't already know about the SETI project, here is a little intro. SETI stands for The Search for Extraterrestrial Intelligence, in short SETI projects use scientific methods to search for electromagnetic transmissions from civilizations on distant planets, hence the "Extreaterrestrial Intelligence". Now, SETI at home is, well, just that. You use your idle computer power to download and analyze radio signals from a SETI project. In their own words, "SETI@home is a scientific experiment that uses Internet-connected computers in the Search for Extraterrestrial Intelligence (SETI). You can participate by running a free program that downloads and analyzes radio telescope data." Sounds simple? Good, because it is.
(http://seti.czechnationalteam.cz/s@h/foto/clasik.jpg)
This is something that is fairly interesting, I recommend you try it. You can read all about that data your analyzing. You can read from which array it was taken from, from which angle is was taken at, and the date. I use it because, well, I mean come on it uses idle power and helps the people whom are overloaded with data. So, if your interested, want to learn more, or whatever, check this links. The last one might intrest you, a team for Argonath. Only a few members, but come on, join up!
SETI Wikipedia:
http://en.wikipedia.org/wiki/SETI (http://en.wikipedia.org/wiki/SETI)
SETI@home Site:
http://setiathome.berkeley.edu/index.php (http://setiathome.berkeley.edu/index.php)
About SETI@home:
http://setiathome.berkeley.edu/sah_about.php (http://setiathome.berkeley.edu/sah_about.php)
Team Argonath:
http://setiathome.berkeley.edu/team_display.php?teamid=140073 (http://setiathome.berkeley.edu/team_display.php?teamid=140073)