Using location in advertising is hard. Google has tried advertising on Google Maps and it also offers advertising options to developers in the Google Maps API. From what I can tell neither approach has really worked in monetizing Google Maps.
The other long running attempt to use location in advertising has been to send text messages to consumers based on their whereabouts. If you are a regular
The other long running attempt to use location in advertising has been to send text messages to consumers based on their whereabouts. If you are a regular