Andrew Sullivan: In fact, I’d argue, blogs could well be a milestone in the long history of journalism. By empowering individual writers, by reducing the costs of entry into publishing to close to zero, the blog revolution has only begun to transform the media world.

To write, the costs of entry are low, as soon as you become literate. To publish, however, the costs were high: ink, paper, and distribution. And so relatively few published. Now, the challenge is not to be published, but to be read.