Public Domain Photos and Wallpapers
http://www.photos8.com/

"This is a place for free public domain photos and desktop wallpapers. Large collection of High Resolution photos and wallpapers, Thousands of high quality public domain pictures, easy to search, All photos on Photos8.com are public domain. You may use these images for any purpose, including commercial. As the owner I have explicitly placed all the photos in the public domain. If you do use any photo, please consider linking back to this site or giving credit to this site. Just something like, "Photo courtesy Photos8.com", This is not required, but its a very good way to support the site efforts here. more information about the License and Copyrights. also read our Frequently Asked Questions." - From the site

free hires pics

This is a place for free public domain photos and desktop wallpapers.