Chart - Click Share Of US Product Listing Ads By Device

The most impressive growth was seen in mobile, which continued to grab click share from desktop. Smartphone clicks in Q4 2013 increased 1,589% over Q4 2012, and those on tablets rose 335.7%. Overall, mobile grew its click share nearly six times year over year, from 4.2% to 24.3%. A main driver of this growth was the release of mobile-optimized PLAs in October 2013. Read the rest at eMarketer.