Probably the greatest mistake one can make is to get an idea, become taken with it, and run for the gold. MYKS shows why this almost inevitably fails. It offers the best approach to finding and testing ideas I have seen. Follow these guidelines, and you will be on track from beginning to end. Ebooks are very popular these days, and can be inexpensively produced.
Audio tapes can work well.
Since not much attention has been given to video, there may be opportunity here. Every form of presentation is covered. Even how to deal with printers, if you prefer hard copy. And whether you decide upon hard or electronic copy, distribution and marketing suggestions abound. Coverage is thorough.