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.

The heads of Facebook, Google, Amazon and Apple will face lawmakers' questions about whether they are using their power to squash competition.

It's Friday and you know what that means: It's time for On Second Thought's weekly roundtable. Today we gathered three people who work in tech to talk...