comScore, today released an overview of the U.S. online display advertising market for Q3’10, that nearly 1.3 trillion display ads were delivered to U.S. Internet users during the Q3, marking a 22% increase versus year ago.
Facebook.com led all online publishers in Q3’10 with 297 billion display ad impressions, representing 23.1% market share. Yahoo! ranked 2nd with 140 billion impressions/11.0%, followed by Microsoft with 64 billion/5.0% and Fox Interactive Media with 48 billion/3.8%.
AT&T ranked as the top online display advertiser in Q3 with 21.1 billion impressions, accounting 1.6% of display ads. Scottrade ranked 2nd with 14.9 billion impressions/1.2%, followed by Verizon with 14.6 billion impressions/1.1%.