You know, I was thinking the same thing. I wish had had the answer to that, but I don't. So, being curious, I went online and found out that it's a pretty big site. I don't know how long it's been up or around, but it's very well organized and they do have a lot of good tips! Here's the link: http://www.hungry-girl.com/
I've been receiving Hungry Girls daily emails for over a year now. THey are packed with healthy food swaps, ideas and recipes. Most Hungry Girl fans are really excited about this book and have pre-ordered. It will be a great resource!
The author has appeared on morning news programs and her articles are featured on the Yahoo home page from time to time. Her website has a following and you can sign up for e-newsletters. I think her popularity is due to word of mouth to a large extent. A lot of people have become aware through weight watchers, too.