GroupM's Rob Norman on Google and Facebook's digital ad duopoly, News Feed changes, Disney's opportunity with Hulu and BAMTech if 21st Century Fox deal closes (Sapna Maheshwari/New York Times)

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Sapna Maheshwari / New York Times:
GroupM's Rob Norman on Google and Facebook's digital ad duopoly, News Feed changes, Disney's opportunity with Hulu and BAMTech if 21st Century Fox deal closes  —  Rob Norman was greeted with a social media flood of well-wishes and compliments from marketing executives at major brands …