Fractional Horsepower Twitters?

As a thought exercise, I tried to imagine places I would put a Twitter if I had the power to do so. I would certainly put one here on my website, to enable Twitter-like micro-publishing among members of the community, in a sense to define what it means to be a member of this community. I don't imagine either the blog or the comments going away, in fact I am sure they would be enhanced by our own...