I'm a regular reader of Seth Godin's blog, and I value his insight into marketing (it certainly jibes well with the way I think about product development in my day job). I have read two of his books now, and I'm finding that his writing doesn't translate well to book form. He's very good at taking a single insight and turning it into a solid blog entry, but his books seem very light on content. This book would make a really great blog entry (or two).