Facebook is dominating the U.S. display ad market, according to data from comScore.

In Q3 2010, Facebook served 297 billion display ad impressions giving it 23% of the U.S. market for display ads. In the first quarter of 2009, it only had a 7% share.

Yahoo came in a distant second place for Q3 2010 with 141 billion display ads and 11% of the market.

From comScore and Business Insider.[...]

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