Again this book is written for people who are not confident or particularly competent since I worked out most of what it teaches on the first evening I logged into Facebook. I also feel it will date (e.g. the privacy settings changed twice last month (May 2010). The sections on writing a blog with Notes, creating groups and sharing videos were useful to me, but it really is written for a different kind of reader.
This is for beginners, not someone who has surfed and learned all these things in less than a year. It does not deal with the complex things that I had to learn such as starting your own blogs, applications, and third party applications offered. These are things I had to test trial for clients on liveperson.com