I am a professional marketer who works in the area of health, namely, developing and marketing health programs and services. I am interested in your website because you provide very interesting information and links about behavior change. I find that what is missing with commercial marketing is a conceptual framework to effect behavior change. The four Ps are basically intervention points but they need to be incorporated into a conceptual framework. Moreover, there are many more strategies and techniques for behavior change that do not fit into the four traditional Ps. I had a very interesting conversation with you 3 years ago about behavior change. I was struck with your opennes and enthusiasm about behavior change strategies. I share your interest but in a different sector, namely, health. I thank you for putting this website together.