I think life exists elsewhere and the SETI project is best possible chance we have right now of finding evidence of that. If there are other civilizations out there, then we should be sending a signal just in case.
I run SETI at home to do my part in helping in possibility of the greatest discovery in history.
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.