US paid search spending grew 15.5% year-over-year in Q2, representing a slowdown from Q1’s 30.3% growth rate, per a June report from IgnitionOne. Despite the overall pace settling back, mobile paid search continued to grow at breakneck speed, with a dramatic 333% increase year-over-year, following a 221% rise in Q1. Mobile accounted for 14% of total US search budgets in Q2, up from 12.3% in the previous quarter. Mobile’s growing importance was similarly seen in a Performics report in May: the company continues to findmobile taking up a larger share of budgets among its aggregated client base. Read the rest at MarketingCharts.