500pix is a community for photographers. You can call it a marketplace for photographers. Homepage of 500pix is always full of beautiful pictures captured by best photographers of the world. A new picture is added on homepage almost every half an hour. It is a community so it has some social features as you can follow a photographer, like and vote for a photo. It is also a marketplace so you can sell your pictures in the marketplace.
Website has paid membership along with free membership, as a free member you can you can upload 10 photos per week. As a paid member you can upload unlimited photos and create unlimited sets. There are two paid memberships; Plus membership for $19.95 /year and $49.95 /year.