Anyone checked this site out yet?
It's like steamgifts but slightly different. You start out with an amount of points based on how many games you have on steam (more games = more points... kinda weird but ok). And after spending those you can earn points by creating giveaways (or by doing nothing, but far less of course).
The fun of this is that you can set your own enter price. There's a formula that calculates the amount of points you gain, influenced by #of entries and price.
It's still far from optimal, needs more improvements but the community is growing and it's kinda fun giving away games there. Even if it's mostly bundle fodder for now.