A Brit commented happily on American girls; an actual mayor commented pessimistically on foursquare and Jeremy Piven commented critically on Halloween. The Twitterati were flexing their credentials.

The Twitterati tried on new roles: A Salon correspondent got a science fiction lecture from the president; a Wired reporter reviewed an X-Ray and a doctor lamented the lack of strange women.

Why work when you can Twitter? David Pogue from the New York Times played copy editor, Tina Fey contemplated cookies, and Internet-celebrity expert Paul Carr was just glad to be alive.