As an author, I'm guilty, too. I co-wrote a programming book, and I still don't think you should buy it. I don't mean that in an ironic-trucker-hat, reverse-psychology way. I mean it quite literally. It's not a bad book by any means. I have the utmost respect for my esteemed co-authors. But the same information would be far more accessible on the web. Trapping it inside a dead tree book is ultimately a waste of effort.