Hi there,
I'm doing WWonline for the 3rd time now. I used it after both of my pregnancies and had great success (30+ lbs)... This time I don't have a baby to blame, I just REALLY like candy!
I like the online program because it's very private, and that works for me. Other people like the "real" meetings because it gives them accountability.
For the online, you just tell the computer how much you weigh, what your goals are, what your height is, and a few other things, and it gives you a "points allowance". Then you plan your meals each day to "spend" that allowance on any foods you want, aiming for 5 veggies, a vitamin pill, lots of water, etc. There are little boxes you "check" each time you get one of those things. You have a weekly allowance, too, that you can use for "splurges." Sometimes you just need a burger... other people use those extra points a few each day or not at all... Once a week you weigh yourself and put that number in the computer and it gives you a smiley or a frowny with some encouragement... Then there's a chart that shows you where you are and where you've been and where you're going... Like getting a gold star for a good job..
It works for me. I would not like to be in a room full of people talking about it, I just want to do it. It takes some time to learn your way around and figure out which foods are the best "deals" for your points, but it changes your view from "I can't have that" to "Ooh, I can have this and this AND this..." sugar free jello and pudding and lowfat yogurt are all good choices, 100 calorie packs help you out when you just NEED that cookie... and it's only about $18/month for the online version.
No matter which program you choose, the best advice is to always track it BEFORE you eat it. My husband is infamous for scarfing something terrible, and then you hear him cussing in the other room when he tracks it and realizes what he's just done...
Good luck!