You’ve read all of your free items this month.

To register, get added benefits and unlimited access to articles, Become a Member. Already a Member? Sign in.

Advertising Age Article Abstract

WPP Division Stakes Claim to Data From Its Online Ads

Group M 'Scares' Media Owners by Stopping the Sharing of Web-Ad Results

By Michael Learmonth, Published on February 09, 2009 2

Want more Access, Content & Connections? Upgrade to Membership.

We are glad you are enjoying Advertising Age. To get uninterrupted access and additional benefits, become a member today.

Become a Member

Already a member? Log in.