Facebook, Amazon and Other Tech Giants Tighten Grip on Internet Economy 

Computing hardware has long served as the critical backbone of business operations. Today, the Internet economy is powered by an infrastructure that has become virtual, and is controlled by a small handful of tech giants. These companies are delivering online search, messaging, advertising, applications, computing and storage on demand—which has positioned them not only to empower business but to extract extraordinary value as it grows.

Source: Facebook, Amazon and Other Tech Giants Tighten Grip on Internet Economy – WSJ