Back in 1995, The Economist took a small gamble: it published a 15-page survey on a relatively obscure phenomenon called the Internet. The survey agreed with critics that the Internet was chaotic, slow, frustrating and intimidating, but reckoned that it was here to stay, because it allowed people better to exercise one of their most basic desires: to communicate. A handful of years on, and a dotcom boom and bust later, that conclusion has been triumphantly...