My amigo Rob is the first ever Twitter Quitter. That I'm aware of at least.
He's quitting smoking and he means it this time. And Twitter is his helper. Good on ya!
But it's more than just making a public statement and shaming himself into quitting, but Twitter is going to help him think about it and make him more aware of his smoking habit. Sometimes at those moments of weakness, twitter can be the outlet. "Damn that bugger, I need a smoke!" And other times at a moment of celebration Twitter can be the affirmation. "Boy I'm glad I'm not the stinky guy in this packed elevator with Gweneth Paltrow and Michael Stipe."
Kind of a non-athletic take on the Non Entity Fat Club, of using social media to make you a better, or healthier person. Which I can relate to as having made a not on aiming to run next year's New York marathon, the emails, comments (digital and face to face) and historical record of the statement make it really hard to pull out on the commitment.
Think I'll start writting the book - The Social Media Guidebook to Quiting, Slimming, Improving, and Achieving Pretty Much Almost Anything.