I think there is and it's glaringly obvious. "If you don't pay for a service, you are the merchandise." With Google that is obviously true. If you can build an

I think there is and it's glaringly obvious. "If you don't pay for a service, you are the merchandise." With Google that is obviously true. If you can build an engine where you can demonstrate that you are not sniffing on the user, you will be able to charge a user fee, and a lot of people will gladly pay for it.