While I like the printed book for its portability, this advantage has disappeared with Kindle and such. I like this new interactivity and ability to link beyond. Seems to blur the lines between linear and purposeful books and in-the-moment blogs. I used to prefer blogs because they were more up-to-date, but they often left me wanting when I attempted to explore in depth. Now, I can get the best of both. With linking a book can be relevant longer.