I signed up for SETI@home when it first came out- I was running some flavor of Super Socket 7 AMD CPU- probably my trusty 330MHz K6-2. Anyway, I fell off a year later and haven't been back.
Then the BOINC team (when the hell did this happen?!) team mailed me... so here I am ready to hurl my mighty Applebred 1800+ into the fray. Or something.
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.