Royalty-free images run the gamut of just about every subject matter, from polished landscapes to everyday people in a variety of situations. You can purchase these photos from a number of websites for unlimited use. The Getty Photos website states: "When you license, or pay to use for your own purposes, an RF image, you can use it in any application, for as long as you like, in as many different projects as you like." The cost for royalty-free stock...