Roku blew away its numbers in style as the US streaming company surpassed 30 million active users in Q2 2019 – comprehensively extending its native dominance in the connected TV space. But while Roku’s second quarter results are a milestone for the company, they also signify significant tailwinds in a broader field – advertising. Revenue growth of 59% year on year to $250.1 million was primarily driven by growth in advertising as Roku managed to more than double the number of monetized video ad impressions. Roku celebrated machine learning becoming the engine behind the most content recommendations in The Roku Channel for the first time in the second quarter, claiming that predictive models are increasingly driving movies and shows in…