I discovered this when I got my new pc as it was set as the homepage.
once you register you can get Beta Keys for all kinds of games and free in game stuff.
you don't need to post,be active,recieve spam mail or anything.
so far I've gotten a beta key for Tera and Nexuiz aswell as a pet in Aion.
just thought I'd share it for anyone who didn't know and always misses betas for games :)