Share of Display Ad Impressions by Top Publisher Category in 2010

The comScore 2010 U.S. Digital Year in Review is now available for download.

Social Networking publishers were responsible for 34 percent of the display ads served in December 2010, an increase of 11 percentage points from the previous year. Portals served 17 percent of display ad impressions during the month, down 4 percentage points, while Entertainment publishers served 11 percent of display advertisements, up 1 percentage point from the previous year.

Share of Display Ad Impressions (%)