What exactly is a Blog?

Is a column a blog? Is a bulletin board of postings a blog? Does a blog look like a Web page? What exactly is a blog? The blog guys will tell you it is whatever they do better than newspapers. But some of the best bloggers are ex-newspaper hacks. So don't drink the cold coffee just yet. Here's a great article in the Washington Post trying to figure out just what this thing called BLOG is. And remember you can do your own experiment at home. Just blind fold a friend and let them touch an elephant - what kinds of responses do you get? That's what a blog is.