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In the news this week, executives from Facebook, Google and Twitter faced the angry music in Washington, with senators upset at the tech platforms for their slow response to Russian ads that sowed discord during the election. The execs promised to do better, but lawmakers might regulate them instead. Amazon passed an important milestone, selling more than $1 billion in online ads in the last quarter. And as more media men are caught up in sexual harassment charges, Nick Denton points out how his old site Gawker had gossip on many of the miscreants ahead of the deeper reporting. Our Metric of the Week is Flyby Readers, and we speak with Politico’s Cally Baute about the tough competition for political news online, and their high-priced subscription products.