1. A geographic-based advertising system, comprising: a mobile unit; a network; one or more providers coupled to said network; and a plurality of access points coupled to said network and arranged at known locations in a geographic region, wherein each of said plurality of access points is configured to detect said mobile unit, wherein, upon detection of said mobile unit by a first access point of said plurality of access points in proximity to said mobile unit, a known location of said first access point is transmitted to at least one provider; wherein the at least one provider provides advertising through said first access point to said mobile unit, wherein said advertising is based upon the known location of said first access point.