What Etsy is to crafts, Society6 is to fine art. Artists can use the site to sell their prints online, collaborate with other artists, and even find grant opportunities. Anyone can join, and artists can choose the selling prices of their own works.
Even if you aren't an artist, you can join the site as a curators. Select your favorite pieces and help promote them. The pieces that receive the most promotions both from artists and curators are displayed on the Society6 homepage.