Its funy that people (like me) install programs like Seti@home. The chance that there will be found some useable signals this way is (at least i think so) minimal. But why we do it? Maybe, curiosity... or just a power in us that drives us to be part of a big, universal project...being a pionneer, that interests me...
SETI@home and Astropulse are funded by grants from the National Science Foundation, NASA, and donations from SETI@home volunteers. AstroPulse is funded in part by the NSF through grant AST-0307956.