Our recent post on Inexpensive Art yielded a plethora of great links in the comments section. Our favorite? Scarab1's referral to the Etsy store of photographer Jack Cantey.
Cantey's work contains images from all over the world, including a few from San Francisco. We love this shot of the Castro Theater, one of our favorite places to catch a film.
His photographs start at $15 for a standard 4 x 6", and he offer a wide range of sizes, as well as the option to have your print matted. Along with the Etsy shop, Carney has over 600 images on Flickr, which are also available for purchase.