EFTA Document EFTA01378018

Years ended December 31, 2012 2013 % change Cost of revenue Percentage of revenue (dollars in thousands) $ 72.794 $ 85,945 18.1% 10.2% 10.7% Cost of revenue increased $13.2 million, or 18.1%, in 2013 versus 2012, driven primarily by an increase of $6.1 million in content acquisition costs from Tutor.com (now The Princeton Review). which was not included in the fun prior year period and $5.1 million from acquisitions at Dating. Selling and marketing expense Years ended December