Answered By: system system Last Updated: Jan 12, 2015 Views: 10
If you do a standard Google search on "mlk images public domain" the first few results are usable. Another option is to search on Flickr, where you can limit your results to public domain or Creative Commons license photos. You can also try commons.wikimedia.org. Every image there is guaranteed available for public, non-commercial use. Regardless of copyright status, it's always good form to credit your source in a caption or note.