1. A system permitting commercial advertisers to directly place video or still image advertisements at selected times and locations on a network of multiple electronic displays, said system comprising: a network including a plurality of electronic displays located in high traffic areas such as areas of high vehicular traffic, indoor and outdoor areas with high pedestrian traffic, movie theaters, restaurants, sports arenas and casinos; at least one central information processing station including: means permitting commercial advertising customers of the system to review a schedule of times and electronic display locations that are available for placement of advertisements and permitting customers to purchase available times at desired electronic display locations for placement of their advertising content; means for receiving customer transmitted video or still image advertising content; means for transmitting the advertising content received from the customer to the customer-selected electronic display location; and means for driving each selected electronic display to display the customer's advertising content at the customer-selected time.