Last year I already had contact with these guys, and after a few startup problems they are now ready for action. Their mision is simple: New art prints daily. Featuring art from all around the world. Sold for only three days. Their goal is simple; help artists gain more exposure. Everyday they want people to have a new chance to discover new artwork and artists.
They are still looking for artists. For more info checkout http://www.threedaygallery.com/