I use the online WW and I LOVE it. All the information you need is there and it's super easy to use. Also, it"s really not that expensive. I think I paid 80 something for 3 months!
I really wouldn't rely on internet sources do WW. I think its worth it to sign up and benefit from all the cool stuff that comes with being a member. For some reason, I don't much trust all the available info on the net!
Good Luck!