Supporting up-and-coming, established and award winning photographers, new site Subject Matter Art stocks numbered and signed prints in a substantial online archive. A simple way to buy artwork, each print arrives ready mounted and framed, in either wood or specially produced Plexiglas and aluminium permallure, and can be shipped to anywhere in the world for free. The only trouble is choosing between the limited edition prints from any of the 25 artists on board. Our pick? Jef Claes’ bold KM21.