The “techlash” against Silicon Valley is in full swing, with multiple government legal actions in effect. A Department of Justice (DOJ) antitrust suit, over Google’s practice of paying Apple and other phone and browser makers for default positioning for its lucrative search engine, has gone to trial. A separate action by the same body against Google over the company’s advertising business is scheduled for next March.

Meanwhile, the Federal Trade Commission (FTC), which shares antitrust authority with the DOJ, is suing Facebook in federal court for its alleged monopolistic buying of competing social media applications, primarily Instagram and WhatsApp. And the FTC has now taken Amazon to court, claiming the corporate behemoth’s control of a marketplace it also competes in constitutes a conflict of interest, and further that Amazon’s practices exploit independent sellers on its site and raise prices across online retail.

While antitrust actions against Google and Facebook will struggle due to the companies’ free services, Amazon may be another story. Though it probably won’t be broken up, the company’s effective price hiking and startling record of naked power flexing over small sellers on the site may have it facing real penalties. But Amazon — formerly known as “relentless.com,” after all (the URL still leads to the site) — is unlikely to give up easily.