Marketing Land: In another historic high, U.S. Internet advertising revenues topped $13.3 billion in the first quarter of 2015. The latest numbers, issued in an interim quarterly report from the Interactive Advertising Bureau and PwC US’s New Media Group, show ad revenues rose 16 percent year-over-year above Q1 2014’s $11.4 billion. “The rise in year-over-year figures is the direct result of brand and media agencies’ increasing commitment to digital marketing. It is clear that interactive has become an imperative in reaching key demographics with tailored messaging and creative.”