It's not really a question of if I believe life exists elsewhere in the universe. It's more that with the millions of galaxies and billions of stars in each galaxy. I find it hard to believe life does not exist else where. I think it's very naive to believe we are the only ones that exist.
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.