A place for us to share good links for stock photos, for art use!
A friend of mine's Horse Stock, for personal & public use, but not commercial:
Horse Stock http://ulvar-stock.deviantart.com/gallery/11095530/Horses
Her Wild Animals stock, same rules (more limited--wolves, lions, tigers):
Wild Animal Stock http://ulvar-stock.deviantart.com/gallery/42914306/Wild-animals
Here's a search site I use, you can search for stock which allow commercial mods, and use the same search to search Wiki, Flickr and more:
Stock Search http://search.creativecommons.org/