Qwitter lets you keep track of how many cigarettes you smoke each day; keep a journal of your thoughts an feelings (“I’d KILL for goddamn cigarette!”); view your progress and follow and support other fiends.
All kidding aside, I can see how this might actually work. If I tweet, “It’s three o’clock and I have not smoked all day” …and my friends George sees that, it might help him hang on.
I could see this working for any number of support groups. “I’ve lost 5 pounds this week and had 3 Ritz crackers for lunch.”