Yup, this is a serious thread. In the first few days alone, for a $38 application fee, you could be in with the chance of living on Mars, one of the four lucky chosen to be flown out there by 2023, as a part of "Mars One". It is, however, presumed that once you arrive, you probably won't be going back. Ever. The website is here.
http://applicants.mars-one.com/overview/popular/
From the looks of things though, they seem to be chosing the four people to go to Mars...by having a reality TV show with people phoning in too vote.