It looks like you're new here. If you want to get involved, click one of these buttons!
"The Steam Community Market has opened in beta today, allowing Steam users to buy and sell in-game items, Valve announced.
Players can now use Steam Wallet funds in the purchase and sale of in-game items. Sale items can be listed on the Community Market page or on players' personal inventories.
All buyers are subject to a Steam Transaction Fee totaling 15 percent of the purchase. The fee is collected to protect against payment fraud and cover Market development costs. Team Fortress 2 also employs a game-specific fee to be determined by Valve.
"With over a half million trades made every week, the trading system has been very successful," said Valve software engineer Tony Paloma in a press release. "Extending game economies beyond trades and giving players a way to turn gameplay into funds for new items and games is a key component for moving that success forward.""
They're going to extend this to their MMO I'm sure.