About existance of ETI: they could exist, but I am afraid that they are too far away, so we can't communicate with them.
About sending a message: yes we should send it, but with scholastic content.
About joining SETI@home: I want to come from words to action :-).
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.
