We often bounce around the terms Web 1.0, 2.0, and 3.0, but many don’t understand the meaning behind those names, and we often disagree among ourselves. Nova Spivack and others often go by decade, with Web 2.0 being the second decade of the Web. New York Times technology journalist John Markoff wrote in 2006 that Web 2.0 “describes the ability to seamlessly connect applications and services over the Internet”— what Spivack calls building the “front end” of the Internet. Web 3.0 is thought to be guided by the development of a collective intelligence utilizing the Semantic Web or the development of the “back end” of the Web. How would you define the different generations of the Web? What version are we currently in? What will Web 4.0 look like?