Mobile devices grew to account for 18% share of US paid search budgets in Q4 2012, from 16.3% in Q3, details IgnitionOne in a report issued today. Spending on tablet search grew by 163% year-over-year, compared to an 87% hike for smart phone search spending, as tablets captured 57% of mobile device search spend, up from 52% the previous quarter.
Search ad impressions grew more rapidly on tablets than on smartphones (212% vs. 20%), as did clicks (135% vs. 29%). But, cost-per-click increased by 45% on smartphones and 12% on tablets. Read the rest at MarketingCharts.