NEW YORK--(BUSINESS WIRE)--The Interactive Advertising Bureau (IAB) today released the “What Works and Why: IAB MIXX Awards 2015 Insights Report,” providing analysis from the awards’ elite panel of industry judges on select Gold-winning campaigns that captivated audiences and delivered meaningful results for brands. Alongside 14 campaign case studies and video interviews, the report highlights best practices across digital channels and explores emerging trends that will be critical to interacti