Abstract: An advertising system provides content relevant advertisements to a client system for rendering in association with an instance of distributed content. The advertising system comprises a web server receiving content requests and redirect requests from the client system. Each content request includes: i) a unique identifier distinguishing the instance of distributed content from other instances of distributed content; ii) a template identifier identifying predetermined image map attributes of a predetermined image map defined within the distributed content; and ii) a search parameter. An advertisement content rendering object receives each content request and in response thereto, returns a rendering of each of a plurality of instances of advertising content in accordance the image map attributes associated with the template identifier. A redirect database maintains, in association with the unique identifier, redirect data and a financial parameter associated with each instance of advertising content.