The Narcissistic Nature Of Blogging

Why do we have blogs? -Essentially it's a glorified online diary. But what sane person has an online diary that they insert metatags into so that it becomes visible on search engines globally?

I think blogs stem from an innate narcissistic desire for ratification and kudos from others. Essentially, blogs tap into our desire for celebrity and really is proof that we all prefer the sound of our own voice...