Tweetle-dom: Follow Diana Vreeland on Twitter

People use Twitter for all kinds of things, mostly to promote products, or most annoyingly, to hawk blog posts. There are a few who use it cleverly. Penelope Trunk is one. She doesn’t write often, but when she does her 140 characters really count. She gives you the inside scoop on something that’s happened in her personal or professional life. She recently revealed that she actually has an editor who reads her Twitter copy before she hits the send button.