The SETI Institute recently started to collect messages
People from around the world are invited to submit pictures, sounds, and text messages that they would want to send to other worlds. The project aims to foster a dialogue about what we should say to extraterrestrial intelligence, as well as whether or not we should be sending intentional messages.
I think this is a good initiative and lets people thinking of ourselves and humanity's place in the Universe - I believe sending messages to E.T. is a deeply human endeavour -, leaving the gray daily routine at least for a moment. However, I would like to see a furthering of the efforts into a really multicultural direction, e.g. using different languages.
Re this I am just wondering how much additional bias will be introduced by the exclusive usage of english - I am pretty sure that english speaking people from non-english countries who submit messages do not represent a fair sample of that country.
An international collaboration, in a concerted action, would be a great thing.