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Ad Age DataCenter subscribers can click on the "+" sign to see expanded data. The first record can be viewed for free. To subscribe, go to AdAge.com/subscribe/

Click tabs below to change categories. Expand each company's profile to view lists of digital properties. Click property for description and link.

• This database was created March 30, 2009.
• See the more recent edition: Digital Family Trees 2010, published Feb. 22, 2010.
• About the Digital Family Trees Questions? Comments? Updates? Contact us

Key digital properties and services of five major U.S. media companies.

Key digital properties and services of the Big Three.

Key worldwide digital properties of the top six agency holding companies. (See story)

About the Digital Family Trees 2009
Ad Age's DataCenter created this database in conjunction with the Digital Family Trees 2009 poster
in the March 30, 2009, Digital Issue. Email customerservice@AdAge.com to order print copies.

Send your ideas to improve the database. Update us on digital holdings. Report database errors. E-mail: DataCenter@AdAge.com

Ad Age DataCenter asked media, portal/search and agency companies to list digital properties and services. Companies may have digitally focused properties and services not shown. Numbers rounded. Media section excludes two more narrowly focused media players: Comcast Corp. (cable; No. 2 U.S. media firm) and DirecTV Group (satellite; No. 5). U.S. unique visitors from comScore Media Metrix for January 2009. Unique visitors are rollups by parent company and not comScore defined web properties for Time Warner, Walt Disney Co., News Corp. and NBC Universal. U.S. media revenue figures are Ad Age DataCenter estimates. Worldwide revenue for portals includes traffic acquisition costs for Google and Yahoo. For agency companies, digital share of revenue is worldwide. Some agency networks, such as Saatchi & Saatchi, handle digital work as part of their integrated offering.

Sources: Companies; comScore; Ad Age DataCenter estimates and analysis.