What I find very comforting, myself, is this statement: "Out of Control is selling better now than it was when first published 14 years ago. People "get it" now. The importance of decentralized systems, peer production, emergent behaviors, hive minds, and evolutionary systems are now obvious in a Web 2.0 world. Back then it seemed too wildeye, woo-woo, esoteric, and geeky. To my delight, it still contains relevance and news for most readers..."
On the idea of adding ads to a PDF, Kevin says: "this is a free PDF which also has the option of displaying contextual ads if you want to see them...briefly it goes like this: if you have Acrobat Reader 9 you can opt in to allow context appropriate ads delivered by Yahoo to appear adjacent to the pages of the book. If readers click on the ads, I share some small fractional revenue, just as I do on my website ads. You won't see these small text ads off to the side unless you opt in via the dialog boxes on opening the file" Sounds like a great idea to me (I did not manage to find the ads in the PDF that I downloaded, though ;)