Given the vastness of the universe and the perniciousness of life, I can't help but believe that there is life elsewhere in the universe. Intelligent life is the big question. We simply must search for it to answer that question. For us, transmission of a signal is simply not feasable with current technology.
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.