Facebook has invested heavily in proving that digital ads on Facebook are effective. Some of the research was done with Datalogix and other firms. About 60 ad campaigns were carefully tracked to show how consumers seeing ads on Facebook spend their dollars on products in brick and mortar stores. One ad with cuddly bears for Coca-Cola was more effective than ads on television, says CEO Sandberg. In addition to targeting users based on what users share in their Facebook profiles advertisers can now see the effects on sales. Facebook's vice president of measurements and insights, Brad Smallwood, says advertisers were given the first big report on how consumers acted after seeing ads in the real world. The results are most evident in digital advertising for mobile phones. Facebook has 6% of the $118 billion digital advertising global ad market compared to Google's 31%. The share in mobile is 18% in 2013, up from 5% in 2012. Facebook shares were up 14% or $7.55 to $61.08 on Jan. 30, 2014. Facebook's share price increased by 20% in July 2013 after a similiar announcement of improvement in mobile ad revenues. Facebook's IPO price was $38 in 2013....