Una historia de Ev Williams

En The Economist con algún dato no correcto que el propio Ev corrige

If blogs were difficult to explain in 1999, Twitters are well nigh impossible. You might call them micro-blogs or nano-blogs, as Twitter lets users write only 140 characters at a time, albeit from any device, or using an instant message or text message. Twitter imposes another restraint: each post must be an answer to the same question: What are you doing?