most concepts, information that doesn't fade in time goes in the book
what evolves quickly, what may change in future, web site references etc. will go online.
Unlike
the Dark side, all book readers can assess online materials for free with a
reference code from the book.
signing up with user id and password is not compulsory and only an option. Website will track the use of this reference code like an affiliate analytic. People who sign up stands a chance of to share the profit from the net income of this book.
online assess covers
- structured content &
- unstructured content (like this blog)