Seth Godin has at least one book that is basically a hardcover printed copy of dozens of blog posts. I may or may not have one of these. You see, I thought it would be a great idea to have it with me while I was in a long lineup at the bank. I accidentally left it there. While the information in the book was just like a blog, the hardcopy medium enabled me to leave it somewhere. Two things happened, this information is no longer accessible to me AND the information is sitting in the bank being readily accessible to its employees and customers. This is not how blogs work.