Google may soon control

half the world market

for online advertising

Google holds 44% of the global advertising market in 2010, against only 34.9% in 2006, according to the latest estimates of Zenith Optimedia, unveiled Tuesday, December 6. The group arrived well ahead of Microsoft (4%), Yahoo (8.3%), AOL (1.5%) and Facebook (3.1%). Things could change in 2011, the alliance announced by Microsoft, AOL and Yahoo, but Google will most likely half of the global advertising market this year, says All Things Digital site, while YouTube is selling ads "display "and new formats such as" love "on" Sponsored Stories