I think the best analogy is with photography. If someone took a photo of your house from the street and sold that photo, would you be upset? Would you have any right to be upset? Copyright of the photo resides with the photographer. Anything else would be impossible. Imagine the task of a news photographer if he had to consult every property owner in every street he took a photo. I've never fully understood why people get so heated about the idea that they might inadvertantly have helped someone else earn some money, but evidently they do. I could understand it perhaps, if for example, someone found their little poser freebie splashed all over the national press advertising Microsoft or IBM or something like that, but frankly, it isn't going to happen. Maybe "commercial use" should be redefined as "corporate use"?