I'm a software engineer who used to participate in SETI@home before it became popular, but forgot all about it when the dotcom market started to crumble. Now I think I'll give a little processor time to it again. :-)
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.