I have the main one, Movable Type (http://www.philosophistry.com/)

This one, mindsay which is pretty much an AIM blog for me, (http://philosophistry.mindsay.coml)

err http://philosophistry.mindsay.com/

A third one, my linkblog: http://philipkd.stumbleupon.com/

and then i'm going to a fourth one: http://www.philosophistry.com/blogger/

(I'll give it a subdomain or something soon enough)

I might as well get a bloxsom blog and a live journal one while I'm at it.

no, but really, I use various services for their unique features.

blogger has a swank search feature and publishes much faster than moveable type, even when I have it FTP into my own machine to do its updating.