This website is pretty cool! Basically, you pick your goals (they don't have to be weight loss or health related, it can be absolutely ANYTHING) and put a contract on yourself to meet your goals. The goal I picked is to lose weight (obviously) at a minimum rate of 1.1 lbs/wk for 55 weeks. You have the option of putting $$$$ at stake (I didn't). You have to report each week, and for each week that you don't meet your goal, you have to pay up. When you set up your account you can choose to have your off-week payments go to your choice of a charity or anti-charity (a group whose views you disagree with)... if that's not motivation, I don't know what is!
I hope this all makes sense.. I had to look around the website and get set up before I fully understood everything (then again, I'm kinda slow sometimes ;]). But check it out! My username there is kuhrisuh, so add me if you'd like a supporter!