subscriber. These MVNO's use a "one person per presentation" model. The relevancy of any given advertisement is based on user demographics, questionnaires, and the like. Leap Wireless International Inc. holds a patent (Owensby 6,647,257)that allows a subscriber to subsidize his/her calls by viewing advertising, and uses a number of subscriber centric factors. While advertising via a mobile phone is still relatively new, inventors have developed ways to use a mobile phone to present advertising to persons standing near a mobile phone user while the user speaks in a non-handsfree mode. Bayne's invention (Bayne, U.S. Pat. Application Nos. 20050239448 & 20050239495)teaches providing a mobile phone user with incentives (e.g. discounted talk time, free content, etc.) for allowing the phone to be used as a mini-billboard by manipulating the main screen to face outward to present advertising (in an alternate embodiment the invention uses the rear-facing screen). This invention differs from the conventional approach of "one person per presentation", and is based on the observation that "birds of a feather flock together" to give the advertiser multiple views per presentation and a demographic that is the same, or similar to, the subscriber. Inventor Okawa (U.S. Pat. Application 20040259599) teaches a similar invention for presenting advertising to unspecified persons near a mobile phone user, using the rear screen, while the user speaks on a mobile phone. Presentation to persons other than the user will likely be used to increase market share in low-income/high-population areas, as well as provide a line extension for ad-supported MVNO's. A new approach to mobile content advertising is the use of viral marketing. Through specially designed programmes users can send recommendations for mobile content they like to their contact lists. Passa Parola, the Italian version of Meyou, has reached a total of 800,000 registered users, by the use of viral marketing alone. Motorsports On 19 June 2003 NASCAR prohibited advertising by any new mobile phone companies who were not in the sport at the time; mobile phone companies who were involved could stay with their current teams, but once they break from their current teams, they could not advertise in NASCAR's premier series. This prohibition was a byproduct of the new ten-year contract with Nextel Communications. Motorsport advertising has been prevalent, especially to replace tobacco; in 2000, Alltel sponsored a car in the NASCAR Busch Series for Herzog Motorsports, and rookie driver Jimmie Johnson. That partnership lasted only one