Permission to use their graphics is granted by virtue of my purchase of a CD Rom containing thousands of their graphics and my membership. You can go to their site and get details for obtaining graphics for use at your web site. Another source of graphics used at the Range is Andover Net which has what is known as the Media Builder Library, rich in all kind of resources, which include graphics. Permission is granted by them for use of the graphics at a non commercial web site. There is a lot of free stuff at Andover.
Some graphics are in the realm of what is known as public domain.
This is disputed by some, but those doing the disputing usually are unable to be specific and point out what graphic is copyrighted along with the artist who claims the copyright. As also mentioned earlier, if you see a graphic that you know to be copyrighted and you know the source and name of person or company holding the copyright, please inform me immediately and I will take the necessary steps to obtain permission for use and give proper recognition of that particular work. There are graphics on the Range that appear on many different web sites and on those which make graphics available for use on non commercial sites. At this point I have found none of these with the identity of the artist and claim to a copyright on such work. Free web space is also available from the fine folks at this web hosting site.