I can't help but feel that this book provides nothing that any decent search engine couldn't provide for free. It's that simple, the business ideas you're provided with aren't the authors, but rather VERY brief summaries of what others have done, and are too brief to be of real value.
Even when it touches on areas such as TAX, and other legalities, you're simply directed to a list of web sites that are of more use.
Perhaps I had unrealistic expectations, but unless you have real difficulties using web search, there is likely better places to look than 5 to 9.