Weightwatchers on the web. Sign up with your name, email address, current and target weights. Update your weight each week, have your peers send you email messages of encouragement, stories of how they'd been good that week and only ate 3 chocolate gateaux instead of the usual 4, how they need cheered up after sucummbing to a family size pack of Cheezits and offering tips and ideas to lose that fat! Online Charts showing your progress etc. Text messages to your mobile phone reminding you of your target each week/day and warning you to stay off the cakes. Absolute winner.