The Authoritative Guide to Self-Help Books

While this is not true research - no double blind, or placebo controls - this is pretty impressive anecdotal evidence. 500 psychologists and therapists recommend what self-help books really do help, and which are mediocre or downright dangerous. My only complaint is that it is now 9 years old - many new books have been written based on good research (see John Gottman - "Why Marriages Succeed or Fail" and Prochaska, DiClemente, and Norcross - "Changing for Good") Where is the second edition? Edit - "Authoritative Guide to Self-Help Resources in Mental Health" by Norcross and Santrock is the updated version. 2000