Hmmmm... Not that I'm aware of, Debbie. When I do manage to find a picture of an ancestor anywhere online I try to contact the individual who posted it and ask permission to copy / repost the picture; and aske them how (and if) they wish to be credited. I have never had to pay for a picture.
Many of the county chapters of USGenWeb have a section where photographs are posted - both of individuals as wel as historical landscapes, buildings, etc. Perhaps you might have luck searching that way.