I've done quite an extensive search regarding this topic when I first began making websites and you did a wonderful job of explaining it here in this article. Having links to "free to use" images makes this article even more valuable, and the explanation of how to use Google's search function is something I never knew! THANKS!
I thought of some more questions I have, but they don't relate to this article so I'm going to look at your other tutorials and see where it would be most appropriate.