1. Content management apparatus for use within a content-based network, the apparatus comprising: an advertising subsystem having an advertising content store, said advertising subsystem being configured to identify at least one advertising placement opportunity in delivered content; a data collection subsystem; a processing subsystem in data communication with said collection subsystem; and a data storage subsystem in data communication with said processing subsystem; wherein said data collection subsystem is configured to gather user-related data, and said processing subsystem is configured to process said user-related data and generate an advertising product based at least in part on said processed user-related data and said at least one placement opportunity.