I found this website a while back and started using it to track the calories and fat etc that I was consuming each day and I found that it is a great tool to use when dieting.
I have been loosing weight and this site has really helped me. When you track your calories and actually see right in front of you what you are putting into your body it really helps you to make better choices when eating. It has educated me on what to eat and what not to eat. I always thought that I could eat all the meat I wanted cause there were no carbs NO WAY! There are actually a lot of calories in meat so you still REALLY have to watch your portion size if you want to loose weight.
You can also keep track of all the exercise you do as well as set goals for yourself each day. It has great articles and recipes. I have really got my diet and exercise nice and balanced now and am seeing great results because of it. It is free so check it out. I'm glad I did.
http://sparkpeople.com/