The document 'Interaction April 2016' presents an analysis of key trends affecting digital media, emphasizing the integrity of the ad supply chain, ad avoidance, e-commerce, and the challenges of data-driven advertising. It highlights the significant issues of ad fraud and viewability, citing that a large portion of web traffic is bot-driven and that advertisers are shifting towards viewable impressions for their transactions. The text calls for industry-wide vigilance and collaboration to improve standards and reduce fraud in digital advertising.