In a class of embodiments, a method of computer-implemented marketing including the steps of providing a web page that includes distinct advertising space for each of N advertisers doing business in a single market but not for any other advertiser, where 1≦N≦8 and the advertising space for each of the N advertisers includes advertising content for said each of the N advertisers, and sending the web page over a computer network. In preferred embodiments, N is equal to six and the advertisers are realtors. Typically, the advertising space is provided in return for consideration from each of the advertisers. Other aspects are processors programmed to perform one or more individual steps of any embodiment of the method and systems including at least one such programmed processor.