My IBSN (Internet Blog Serial Number) is 46-00-43-9745. Of course, I can’t tell if this is a serious undertaking, or a spoof, but the number itself is random. You can choose your own! And you can get a bar code too. Oooohhhh!
Update: 2008-01-06 5:45pm: It’s a porn site now, so I removed the link.
Update 2008-01-06 5:53pm: I found the real link. The site though is in a couple different languages, so it’s still kinda gimmicky.