I was just emailed a link to some photos that I took the other night with someone else's camera. They were posted onto Snapfish, a service of HP. All I wanted was the raw images that I took, so I went looking for them. The best quality image, ie: the raw image, was under Snapfish's "Get Hi-res photo" link. The subsequent page told me that I would have to pay for the hi-res image. That's the equivalent of asking a friend that has loaned you his car to pay to get it back, which is basically theft.
And that brings us tonight's business principle: Do not charge the customer for what he has provided.
Business models built on the opposite of that princple are unfriendly. They will most likely cause first time customers from using your service again and telling their friends how greedy the service is.
