Before social networking sites and chat rooms came along, there were forums, message boards and mailing lists on the internet, which allowed people to interact with each other in relative anonymity. At that time, text strings were about the only thing that really went around, because even images had to be downloaded before they could be viewed. Some people discovered that it is possible to string sentences together that outrages, frustrates or angers completely unknown people on the web. This was a source of amusement, but it soon became more than that. The activity was known as trolling, but getting...