eMarketer: Facebook to Surpass Yahoo! in Display Ad Revenues This Year

For the first time, the largest share of US display ad revenues will go to Facebook, eMarketer estimates. The social network’s 80.9% growth in display ad revenues, to $2.19 billion this year, will mean Facebook sees 21.6% of all US display ad dollars.

That will put it ahead of Yahoo!, as estimated display revenues will be up 16%. Yahoo!’s market share will inch up to 16.4%, while display gains at Google push the site’s share of display spending to 12.6%.

In the search market, Google will solidify its position as the top site with an increase in market share of nearly 4 percentage points, to 75.2%. On the other hand, Microsoft will have search revenues up 16.4% in 2011 and will increase its market share slightly for the next two years. Meanwhile, Yahoo’s search revenues will continue a slow decline, dropping to $1.1 billion from $1.28 billion in 2010.