This site is collecting messages that will be transmitted to Gliese 581d, a planet outside our Solar System which may support life. Comments are moderated: inappropriate messages will be rejected, and messages must be in English (so we can evaluate them)
Apparently in 6 days or so, messages will be sent to Gliese581...

Post your messages at this website:

www.hellofromearth.net

I know mods, normally we aren't allowed to post links to other websites, but the messages on the site plus the whole reason are just too hilarious to ignore...