Ad serving system
A system which inserts ads into Web pages when the pages are accessed by a user. The Web page and the ad may be served (i.e. delivered) by entirely different companies using geographically separated servers. The system requires that the designated Web pages have links embedded in them that correspond to certain sizes of ads and to certain categories of products or services. Often the company delivering the Web page receives compensation for attracting users who view the advertising but has little or no control or interest in the specific advertising messages delivered. Often the company operating the ad serving system is not advertising any of its own products or services but is acting as a middleman between the advertiser and the company that supplies the Web pages.