Speaking to investors and analysts during a webcast on Tuesday, the Internet search giant outlined the various elements of its efforts to increase its ad revenue from display ads such as graphical images, videos and interactive Web animations.

 Google's Tom Pickett, director of online sales and operations, said the company sold out 90 percent of the ad inventory for the homepage of YouTube, Google's video website, in the third quarter.

 Google, the world's No. 1 Internet search engine, did not provide financial updates for the current quarter.

 Google has made a number of recent acquisitions to bolster its business selling display ads as it supplements its revenue from the text ads that appear alongside its search results.

 The company bought ad serving company DoubleClick for $3.1 billion in 2008. Last month, Google announced plans to pay $750 million to acquire AdMob, which makes technology to serve ads in the applications popular on smartphones like Apple Inc's iPhone.

http://www.reuters.com/article/idUSTRE5BE4YF20091215