When I read slashdot, I will often see signatures with a line that reads "For a free GMail invite, do $silly_or_annoying_task." Since I have 5 available GMail invites, and no one I know seems to want them, I have decided to pose my own challenge to people looking for a gmail invite:
My username for GMail is the nick name for a charachter, Vautrin, from one of Honore de Balzac's books. If you know the nickname, and email email@example.com, and you're right, I'll send you a free gmail invite to your email address. This is a first come first serve basis, good luck!