
Prithly
Prithly is a marketplace of models for 3D printers. If you are user with a 3D printer you will find models created by experts for free or for a low price.
If you are a designer, you will be able to earn money from each item sold. And now Prithly has a forum too, so that even if you don't have a 3D printer you can keep in touch with the community.