The worldwide web has developed in three distinct phases. Web 1.0 started in the ’90s with the advent of the browser, HTML, and this thing called websites. During this Web 1.0 phase, users could read text, see small pictures, and complete basic transactions, but beyond that, functionality was pretty limited. Then, in the early 2000s, new technologies came along that led to more powerful websites and a more robust web infrastructure. Broadband proliferated in several countries, online video took off, and it became easier for people not just to consume stuff from the web, but also publish stuff to it. In this Web 2.0 the web became more than a giant shopping mall and online encyclopedia; it was a place where people could do all sorts of things. Billions of people from around the world came online, and often one of the first things they did when they got there was search.