The Second Life Marketplace (for the virtual world Second Life) is something like this Photoshop Extension, enabling any SL user to sell their creations to othe

The Second Life Marketplace (for the virtual world Second Life) is something like this Photoshop Extension, enabling any SL user to sell their creations to other SL users. https://marketplace.secondlife.com https://marketplace.secondlife.com Unity (the game engine and game editor) also has a marketplace, called the Unity Asset Store. It's integrated right into their editor / IDE. http://unity3d.com/asset-store/ http://unity3d.com/asset-store/