Envato is setting up 3dOcean, an online marketplace where you can sell all your 3D assets: Get an invite here
This is the kind of content they are looking for, (from cg.tutsplus.com):
3D Models - We are looking for anything from animals over anatomy, buildings and architecture, deco and design elements, electronics, engines and parts, fantasy and fiction, furnishings, humans, plants, sports, toys, vehicles of all types, shapes and sizes, ... all the way to weapons and armor and even theme packages.
Materials and Shaders - 3D models need good materials and shaders to unfold their full potential. If you have worked hard to create quality materials and shaders then this is the place where you can make them work for you.
CG Textures - Every CG artist is always on the lookout for good texture resources and this section will be dedicated to textures that are optimized for the use in 3D applications.
3D Print - If you have created a digital piece of art that you would like to sell to the world, be it a figurine, a modeling kit, to scale furniture, detailed vehicle models or anything that can be 3d printed, then this is the section that makes it possible.
2D Concepts - This is a section for character front-side-back views, technical drawings and blueprints or anything that can be used to construct 3d models.
Should be interesting to see how it competes with turbosquid...