Abstract: An advertisement data store maintains advertisements that have been displayed for viewing and/or information corresponding to the displayed advertisements. The advertisement data store provides advertisers with an advertising model to selectively reach potential customers and clients, and provides viewers with additional information about a particular product and/or service after having viewed an advertisement of interest. A viewer can reference the information maintained in the advertisement data store without interrupting a current television program and without missing other advertisements that may be of interest to the viewer.