I use www.my-calorie-counter.com....which is part of everydayhealth.com now I think. It suits my needs well, in that I can input my food and exercise and even has a little message board to go along with it. It was one of the first sites I found when originally looking for calorie counting sites and it's pretty easy to use.
I guess I am ocd..I have notebooks for everthing !
so I write everything down in a happy bunny notebook.
And the nutrasystem website,which I stopped using in favor of calorie counting,calorie king, and several others...