New quality assurance mechanisms will develop in connection with publishing on the World Wide Web, WWW. One of the most important will be on-line 'user feedback' and 'review' of products. This floor cement smells and gives causes illness. This book/document I find relevant and good within these areas. Statements from known persons supports me (this person do not like this book which means that I will propably like it, or more often the opposite). For example see the virtual book store Amazon Books, http://www.amazon.com. ©Per Christiansson