… here’s one idea.
From the link:
Or perhaps people shouldn’t bother composing a message at all. AnotherSETI scientist, astronomer Seth Shostak, has proposed that we just broadcast everything on the Google servers out to aliens.
“Instead of trying to think of what’s fundamental, just send them a lot of data and let them sort through and find the pattern,” Vakoch said.
Vakoch discussed some of the issues around interstellar message composition in a recent paper in the journal Acta Astronautica.
David Kirkpatrick 
Or – on the other hand – maybe we don’t want to attract attention to ourselves. I mean, with our recent track record as a “civilization”….
Comment by The Wiseman — April 5, 2010 @ 5:34 pm