Do you have some examples of services going from fee-for-service to fee-and-ads-for-service? I am coming up blank. The closest that I can think of are areas tha

Do you have some examples of services going from fee-for-service to fee-and-ads-for-service? I am coming up blank. The closest that I can think of are areas that had been as based but then added fees as well, such as TV.