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[$$] Social Networks Can’t Afford to Lose Too Many Friends

The big social media companies have become highly valuable by effectively selling access to their fast-growing user bases. Facebook reported its first slip ever in the combined number of daily active users in the U.S. and Europe—markets that drive a majority of the company’s advertising business. Twitter has seen drops before, but this time investors were expecting the company to add 2.5 million to its monthly active user base for the June quarter.