ImageEmbed Offers High-Quality Photos for your Blog Posts (mostly free for small blogs)

Stock photographs are expensive. Some professional photographers distribute their work under Creative Commons but if the license includes the Non-Commercial (NC) clause, you (the licensee) aren’t supposed to use their images on a for-profit website or one that has ads. via Pocket http://www.labnol.org/internet/find-photos-for-blog/28203/