http://www.economist.com/news/business/21662543-people-spend-more-time-social-media-advertisers-are-following-them-brand-new-game
Even if marketers master social media without coming across as clumsy, grating or intrusive, there will surely be a limit to how much advertising will shift to the platforms. Television ads are still great for reaching big audiences with simple messages. Print ads can lend brands an air of credibility (we would say that, wouldn’t we?). Like fund managers, advertisers will always want a balanced portfolio.