Several years ago, I started making notes when I read books on business and other topics that are of interest to me. The reason I started making notes is I would read a book and want to refer to a portion of it at a later date. I would then wonder ... what book was it? ... where was the section I wanted to re-read? My solution is to make notes as I am reading the book.
Why place my notes on the Web? I'm not always at home when I want to look something up and I'm not always on the same computer at home. The solution: put my notes on a site so I can access the info at any time and from almost anywhere.
You will find my notes on some books are only a couple of lines. Others are pages long. Some of my notes are direct quotes and some are paraphrases. As I read a book, I'm usually searching for information on particular subjects. My notes may not contain information about other subjects or perspectives covered by the book. Following are my notes on Customers.com. I recommend you read the book. It has lots of great info and case studies.