The latest report from the Interactive Advertising Bureau UK (IAB UK) and PricewaterhouseCoopers (PwC) indicates that online ad spending in the UK totaled ?151.6 million in the first half of this year, representing 2% of overall ad spending in the region. The IAB/PwC findings indicate that ?81.3 million was spent on online ads in Q2 — rising by 15.6% over the first quarter of this year.