Chapter 13 describes the Internet revolution starting from ARPANET, which was a packet-switched network, to TCP/IP, which is a set of network standards for interconnecting networks and computers. These developments led to the birth of the Internet, and Tim Berners-Lee’s work at CERN led to the birth of the World Wide Web. Berners-Lee built on several existing inventions such as the Internet, hypertext and the mouse to form the World Wide Web. Applications of the World Wide Web are discussed, as well as successful and unsuccessful new economy companies. The dot-com bubble and subsequent burst of the late 1990s/early 2000 is discussed, and we briefly discuss the Internet of Things and the Internet of Money.