Actually Cherry has come up with a good point. So I have thought out the solution.
There will be a question/answer forum for purchasers of the Ebook to join.
In there we can have a section that lists a site like this
http://www.dpreview.com/reviews/timeline.asp
With reviews of the latest cameras.
Then people can ask questions, with the newest equipment and how to use it I will be out of date. But this is about the actual shooting of porn and that hasn't changed much since I bought a Canon A1.