Have you heard of Tophatter yet? It is a fairly new live auction site. It is a little bit like Ebay and Etsy combined. It is real easy to use, and has this awesome feature where buyers and sellers can talk to one another in real time as everyone chats in the auction room.
It is great if you personally sell prints of your work or small original paintings. I have had some luck there, although some things sell under my retail, many sell more than retail. It is definitely worth looking into if you are looking for a new venue to sell your work.