Breaking down that $6.1 billion between display and native ad spending, the study predicted that this year native spending will account for nearly 40% of total spend. (Differences in totals between the various breakdowns is the result of rounding.) The remaining 60% will go to traditional social display spending. Native formats will grow by 45% in 2013, and growth will remain in the double digits through 2017. However, native’s portion of the total is expected to remain fairly flat. Read the rest at eMarketer.