The state and federal officials say Facebook's acquisitions of WhatsApp and Instagram violated competition laws and served to stifle rivals by giving the social network an unfair advantage.
EU accuses Amazon of exploiting data collected from other sellers for its own benefit. These are the first formal charges against the retail giant in a spate of antitrust probes in Europe and the U.S.
An agreement worth up to $12 billion made Google the de facto choice for online search on millions of iPhones. Justice officials say the deal may be anticompetitive under U.S. law.
The antitrust lawsuit against Google is the most significant action the federal government has taken against a technology company in two decades. Google calls the lawsuit "deeply flawed."
House Democrats recommend Congress look at ways to force the companies to split off some of their businesses, saying the tech giants have exploited their power to benefit themselves and hurt rivals.
Senators pressed the tech giant on the scope and scale of its digital advertising business. Republicans repeated long-running allegations of conservative bias.
The CEOs tell Congress that the giant American tech companies do not stifle competition, saying the concern that too much power is concentrated in too few companies is unfounded.
The first congressional testimony by Jeff Bezos comes at a time when he and Amazon are seeming at their zenith, occupying ever-growing space in American culture.
Amazon has long resisted calls for such testimony, but a new letter to the House Judiciary Committee suggests Bezos is open to joining other tech CEOs at an antitrust hearing.
The proposed merger "is not reasonably likely to substantially lessen competition" in the mobile wireless market, the judge said. The deal would unite the nation's third- and fourth-largest carriers.
Nevada Attorney General Aaron Ford announced his office would join 47 other states in an investigation into Facebook for possible antitrust violations.
The top legal officials of 48 states, led by Texas Republican Attorney General Ken Paxton, announced a major investigation into Google's dominance in search and advertising.
The Justice Department says it is launching a wide-ranging antitrust review, without naming the companies. But there have been increasing calls to regulate companies like Google, Facebook and Amazon.
The European Union's antitrust arm will evaluate Amazon's role as both a retailer and a marketplace for others. One focus will be on Amazon's use of data collected from third-party sellers.
Lawmakers in the Senate and House are questioning lobbyists and officials from Facebook, Google, Amazon and Apple on an array of issues, including whether they're so big they stifle competition.
The reported proposals would limit eligibility for films debuting on streaming services such as Netflix. But the federal antitrust chief objects, and he laid out why in a letter to the academy's CEO.
For years, AdSense contracts gave Google a wide range of control, including how its rivals' search ads would appear — and their size, color and font, the EU says.
The European Commission found that the tech giant broke EU antitrust rules by requiring manufacturers to pre-install the Google and Chrome apps. Google plans to appeal the record fine.
A judge gave his blessing to AT&T's drive to take over the Time Warner media conglomerate. He rejected the Justice Department's arguments that the combined company would be too powerful.
