Twitter Is What You Make It
http://www.nytimes.com/2009/02/12/technology/personaltech/12pogue.html?_r=1

Pogue, David
New York Times, The
2009

Abstract:

There’s nothing quite like Twitter. It’s a Web site where you can broadcast very short messages — 140 characters, max — to anyone who’s signed up to receive them. It’s like a cross between a blog and a chat room.