As a webmaster with dozens of commercial WordPress sites and blogs I’m always looking for royalty free sources of high quality stock photos and images to use in my articles: also use them in my SEO theme as headers and thumbnail images which are used on thousands of sites (these have to be public domain images, no copyright restrictions at all).
I have a bunch of image sites bookmarked, but can never seem to find the right stock photo sites bookmark when I need it (I have too many bookmarks, too many bookmarks :-))
Free Stock Photo and Image Sites
Example Pixabay Images
David Law : Freelance SEO Consultant