I like using my office machine to run SETI@home to make use of cpu cycles that would otherwise go unused. Maybe my machine will process the "golden" data block that contains E.T.'s home phone number!
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.