A very useful recap by Mathilde Berchon on Making Society:
Many entrepreneurs are seeing opportunities in 3D printing marketplaces. Offering a service to amateur designers for selling their 3D files seem to be the big deal. For now, market size is very questionable but as a 3D designer you might want to give it a try, even more if your designs really rock.
37 Marketplaces to Share, Buy and Sell Designs for 3D Printing | MakingSociety.
