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. Team WarpSpeed9 is helping Seti@Home search for Extraterrestrial Intelligence by donating the idle time of our PC's to analyze this data. Please join us in the search..

To find out more about Seti@home you can visit Berkeley's web site here. 
You can also read Wikipedia's article about Seti@Home here.