Have you published any excerpts to The Yii Book other than the Introduction?
In a more general sense, how can someone like me search for your self-published content? I landed on the Planet Ullman largely through intensive searching of Amazon for a JavaScript book. I'm here by accident. Is there is a website dedicated to self-published content that offers Amazon-like searching and links for purchasing content? Perhaps I should start learning how to use Library of Congress if I want to locate you? I assume you do have a Library of Congress catalog number?
Thanks
Bob Cochran