In an essay for Technology Review, NYU journalism professor and online-savvy Jay Rosen questions the definition of journalism, now that the social pattern of creation and consumption has been altered by the arrival of digital media.

Rosen notes that journalism has been conducted for the most part inside the media industry, but that the old production cycles --- the daily paper, the broadcast or the magazine --- have been disrupted by the always-on-deadline Internet.

"Journalists insist that their habitual practices are not artifacts of a technological era but the essence of good journalism. They shouldn't do that," he says. These days, "journalism is not the media."