Facts about Google's acquisition of AdMob 
On November 9, 2009 Google announced an agreement to acquire AdMob, a mobile display ad technology provider, for $750 million. This acquisition will enhance Google's existing expertise and technology in mobile advertising, while also giving advertisers and publishers more choice in this growing new area.
Mobile advertising is a rapidly growing and competitive space, and Google and AdMob are currently specializing in different areas. Though Google offers many forms of mobile advertising, its focus to date has been on mobile search ads, while AdMob's focus has been mobile display ads and in-application ads.
