Profile income

Now isn't this really the heart of marketing? Unless you select mass broadcast to advertise your product, you have to figure out who is your ideal customer, and target that group like a laser beam. Websites that have asked for permission and carefully build profiles of specific customer target groups are in a valuable position to earn new revenue. The key here is permission, or opt-in/opt-out, before you do anything with this data. Your customers trusted you enough...