I run SETI@home on all my computers in the hopes of settling the big question: is anyone out there? To paraphrase Clarke; either we're alone in the universe or we're not and both answers are terrifying. But, wouldn't it be great to find that interstellar message-in-a-bottle washed up on our shore?
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.