Amazon, Apple, Google, Facebook and Microsoft — the five largest U.S. tech firms — are speeding up their acquisitions, even as they are under antitrust investigation by federal officials and state attorneys general. By the end of June, the companies had disclosed 27 deals, up 29 percent from the same period last year, when they announced 21 deals. The increase in purchases could be used as proof by regulators and economists that these companies are using their wealth to dominate competitors and increase their market share. Continue reading Big Tech Firms Step Up Acquisitions Despite Antitrust Probes