Roger Ebert on his addiction to Twitter:
I vowed I would never become a Twit. Now I have Tweeted nearly 10,000 Tweets. I said Twitter represented the end of civilization. It now represents a part of the civilization I live in. I said it was impossible to think of great writing in terms of 140 characters. I have been humbled by a mother of three in New Delhi. I said I feared I would become addicted. I was correct.
Ebert also had a list of best Twitter practices:
My rules for Twittering are few: I tweet in basic English. I avoid abbreviations and ChatSpell. I go for complete sentences. I try to make my links worth a click. I am not above snark, no matter what I may have written in the past. I tweet my interests, including science and politics, as well as the movies. I try to keep links to stuff on my own site down to around 5 or 10%. I try to think twice before posting.