Many moons ago I was muttering darkly about the problems of finding suitable reference photographs to use as the basis for paintings. Well, recently, I found a site that aims to bring painters and photographers together and on which photographers post their photographs for precisely this purpose. If you need reference photos, or just a bit of fresh inspiration, have a look at http://paintmyphoto.ning.com/ where you will find upteen thousands of photographs covering many subject areas, including landscapes, buildings, boats, animals (wild and domestic), flowers galore, a few portraits and more. A minority of the pictures are of finished paintings or drawings based on photos in the site, and it must be admitted that many of the photographs are not all that useful (some being, for all practical purposes, duplicates). Even so, this is a very welcome site and all credit to the photographers involved.
Reference photos for painters