A few months back we wrote a book review on the Châteauneuf book by Harry Karis, what must be the definitive magnum opus on the producers in Châteauneuf-du-Pape. However, it is a huge book (2 kg?) so not very easy to lug around on your travels in the Rhone Valley.
Now the book has been launched in an electronic version, in pdf format. More info on it here www.cdpwebshop.com