I just found out about this site a few days ago. I never knew it existed, so I figured I'd post about it.
Win Steam Gifts or Create a Giveaway for Your Gaming Community
You basically just use points that you accrue from the site to enter into Steam game giveaways. All of the games are put up by Steam users. I actually thought the site was just bs, but 2 days after I joined I won Civ IV Which is hilarious because my hubby has been on it for a month and hasn't won anything yet. Mwahaha.
Anyways, enjoy
**Edit: Just a heads up- your Steam account must be valued at $100 to even make an account. I assume that's because they don't want people who really don't use Steam or buy games from Steam to be getting free Steam games? *shrugs*
Haha Just for shiz and giggles my account worth. $1,251.20 O_o