[Lexarius]

Doesn't have to be ads. Suppose you run a restaurant. When someone asks their phone about restaurants nearby, how much would you pay to have your restaurant preferentially mentioned before other restaurants? How much would you pay to get access to a list of questions people ask about restaurant-related terms near you, and how the person reacted to the results? Did they ask further questions about your restaurant? Did they view your page? Did their phone's GPS indicate that they visited your establishment?