American Ad Spending on Online Social Networks

Advertising Spending by American advertisers on online social networks from the year 2006 and projected till 2012:

2006 : $350 million
2007 : $920 million
2008 : $1430 million
2009 : $1815 million
2010 : $2085 million
2011 : $2360 million
2012 : $2610 million

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