All the News That's Fit to Tweet
The history of the Internet -- and the history of technology in general -- could be described as one big demonstration of the doctrine of unintended consequences: a system designed to help researchers collaborate, and developed to protect military communications in the event of a nuclear war, wound up being used primarily for shopping, socializing and entertainment. The same is true of many of the products and services on the Internet as well. In its early years it was mostly seen as a one-to-many broadcast medium, like TV or radio, but over time it's the more interactive elements that have proven to be most popular, with users producing at least as much online content as professionals.