Stobacco.com has a noble purpose - to help people stop smoking. Started by two ex-smokers, they wanted to start a site based on their experience. They believe a key component to success is to engage your friends and family to hold you accountable. Designed as a game, a smoker signs up on the site to enter the six-month no-smoking challenge. They then invite their friends and family to be 'witnesses,' to see if they smoke in that time period. If they do see them, they report it online. If a person is reported, they have up to 3 times to get caught or they lose the challenge. Friends and family can take bets on whether the smoker will last the six months, and comments from your witnesses are accepted as well. A fun feature is to see how much money the smoker has saved by not smoking. Overall, the site is easy to use and potentially a great tool for those trying to give up a deadly addiction.