Worldwide Facebook Ad Revenues, 2010-2014 [CHART]

Chart - Worldwide Facebook Ad Revenues, 2010-2014

Ad revenues at the social networking giant will continue to rise this year, though at a significantly lower rate than in the past.  In February, eMarketer predicted ad revenues at Facebook would reach $5 billion this year, but underperformance throughout the first half of 2012, along with questions about the effectiveness of some of the site’s ad products, have led to a downward revision of close to $1 billion. Read the rest at eMarketer.