Someone posted a link in one of the newsgroups I belong to, pointing to a Buyer’s Awareness article posted at the American Society of Media Photographers (ASMP) web site. The article warns of some of the dangers buyers face when choosing between Royalty Free and Rights-Managed Photography. I’ve added a permanent link to this article on my Photography -> Resources page. You can also see my own take plus an additional example that I use for clients who may not be aware of the differences between the two main sales models.
Also, be sure not to miss a semi-obscure link about halfway down on the ASMP page, called, “An Unsolicited Commercial Love Story.” It’s a great tale of discovery whereby one person tracked down over twenty different uses of one particular model from an RF site. Best of all is the last page, which includes a letter from the model herself.