Let's hope there's intelligent life out there, since I yet have to meet any on this planet. ;o)
Humans DO already transmit a beacon into the huge vast universe: TV and radio, and is that what we want others to meet when they discover humanity? Seriously, they might not like us if the first programme they see is WWF or Jerry Springer...
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.