30 Biggest Social Media Advertisers Of 2012: @Dell comes in 3rd w 1.9 bil impressions http://cmsc.re/e9J3s via @BI_advertising HT @comScore
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30 Biggest Social Media Advertisers Of 2012: @Dell comes in 3rd w 1.9 bil impressions http://cmsc.re/e9J3s via @BI_advertising HT @comScore