While doing my Post Module Assignment of Process Improvement using six sigma today I was thinking about the references I was using in backing the comments, statement and ideas I got from other sources and my thoughts. I came across various books and published articles on the same topic by two different authors who have exactly the same goal but following a completely different way to achieve that goal. For example, how to implement lean six sigma in service industries, various authors have entirely different approach to implement lean six sigma in service organization. In fact, some of them do not even think that just implementing lean six sigma is good enough to solve the problems faced by service industry. Although every author wants to make a different point depending on the approach they take however, I wonder if there is a website where people rate the books and journal depending on whether they agree with the ideology of the author or not??Does anyone know any website like that?? I have been looking at book reviews but sometimes they are good enough as often a lot of them include people who do not know enough about the topic or who are new to this topic therefore, whatever is presented in the book they are convinced it is correct so they recommend that book.