It's not Q1 2008, but Q4 2007 was up YOY by 24%. http://www.iab.net/about_the_iab/recent_press_releases/press_release_arc...
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It's not Q1 2008, but Q4 2007 was up YOY by 24%.
http://www.iab.net/about_the_iab/recent_press_releases/press_release_arc...