According to a report from the Interactive Advertising Bureau (IAB) and PricewaterhouseCoopers (PwC), online advertising achieved its highest Q1 revenue level ever in 2010; with revenues in the US growing to roughly $5.9 billion – represented a 7.5% increase year over year. David Silverman, PwC Assurance Partner, stated that these results are a “sign of health and vitality of online media, and of marketers’ continuing investment in interactive as a cornerstone of their advertising campaigns.” (via IAB)