OnDemand is a password-protected Extranet site for on-line advertisers to review program summary information as well as drill downs to upcoming directory closings and scheduled ad sizes and creative. Clients may approve or revise placements exclusively online. Links on the site provide instant access to directory demographics, research, dynamic maps, tear pages, ad costs and other useful planning tools. Corporate, regional and individual market “views” are available, depending on the needs of the individual client.