How People Share Online Video

In a world of continuous technological change, the concept of “new” can get old. Take online video, for example. A few short years ago, the term “online video” was wishful thinking. Clips could only be slowly downloaded. They had to be viewed in tiny windows on the computer screen. Sound and graphics were primitive. Video was hardly a killer app. But then, in a rush came—sometime between 2005 and 2006—YouTube in the US, Dailymotion in Europe and Tudou in China, video-sharing sites that all had three basic elements in common...