19. The method of claim 18 , further comprising: tracking a path of the visitor via domain name system (DNS) resolution.
18. The method of claim 5 , further comprising: dynamically providing the first linked advertisement to a first server for presentation of the first advertisement in a first information page; paying the seller when the first linked advertisement is selected from the first information page; providing a second information page to present the second advertisement of a buyer when the first linked advertisement is selected from the first information page; charging the buyer when the second advertisement is selected from the second information page; and forwarding a visitor of the second information page to a third information page when the second advertisement is selected from the second information page.