Actually, the net-savvy call a Video Blog a vlog, and I can't see any reason why you would want to read (or why I would want to type) when I could record these thoughts with a digital camera and deliver this (or any) message to you - in full motion. From getting my intonation to seeing my facial reaction to hearing my voice. I'm going to mess with the medium as others follow the standard path of fingers to keyboard.
Look for it in a media player soon. It's another marketing medium. Another publishing medium. Another area for advertisers and marketers to figure out how to monetize.