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• Read About Marketer Trees; Methodology.
• Go to the full 100 Leading National Advertisers Report
• Marketers' "big four" agencies are hot linked to Agency Family Trees;
click on those links for agency profiles.
• Questions? Comments? Updates? Contact us: DataCenter@AdAge.com
• This database was last updated June 22, 2009.
• Here's a version updated for the Ad Age Annual 2010, released Dec. 28, 2009.