Do Blogs Die?

The previous post got me thinking: What happens to our Web pages after we die? Who "turns off" our Facebook profiles or writes "fin" on our blogs? Do they outlive us indefinitely, becoming Flying Dutchmen of the Web, forever roaming the Internet? As blogs and social network profiles proliferate, how many will outlive their creators, leaving the Internet populated by both the living and ghosts from the past?

In five or ten years, when you notice someone on your Facebook profile you haven't...