Muliple blogs on Windows Live Spaces requires multiple Live IDs
Blogger lets me manage multiple blogs all under one login ID (Google account). I had heard that Microsoft Windows Live Spaces would allow me to have multiple blogs, but I searched high and low and was unable to find an equivalent feature in Live. I checked some more, and it turns out that yes you can have multiple blogs on Live Spaces, but each requires its own space and Live ID, somewhat akin to having multiple Hotmail accounts. Oh well.
I'm sure that Windows Live Spaces (that's the full and proper name) will eventually catch up with Blogger, but for now you have to resort to the multiple Live ID workaround.