survivejs.com for more information and free online version. I hope you find the book useful.
So far it has been an interesting experience and some people have actually bought the book. I can only hope it's providing enough value to warrant that. Now the plan is to see how sales go and perhaps do some careful PR moves. This will determine how I will progress with possible further development.
I wouldn't mind continuing this sort of work as it has provided a refreshing break from the daily grind. But there are certain financial realities to keep in mind. Anyway, we'll know more in a few weeks I think.