I certainly believe that extraterrestrial life exists. The universe is far too large for us, Humankind to be the only intelligent life. I seriously doubt that we will make contact with anyone/thing in my life time. My hope is that whomever we meet up with is friendly.
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.