Steam is hosting a Holiday Auction
This holiday season, Valve is introducing a new event that gives gamers the chance to recycle Community items in their Steam Inventory for new games.
From now through next Thursday, gamers may recycle unused items – such as Trading Cards, backgrounds, and emoticons – and exchange them for “Steam Gems.” Then gamers may use those Gems to bid on nearly 200,000 new games. The bidding begins now, with new Auction Rounds happening every 45 minutes, Monday through Thursday morning.
You can get in on the Auction by going here: http://steamcommunity.com/