Of late, I've been doing a lot of Blogging on www.livejournal.com. (Check out my blogs there at http://www.livejournal.com/users/aldon) This is where I do most of my blogging.
I also got set up at Blogspot (http://aldon.blogspot.com/) I've just tested this out a little bit, but don't really have much there.
And then there is Ecademy (http://www.ecademy.com/module.php?mod=blog&op=view&uid=18670) This blog community seems to be mostly oriented around tech issues, so I've posted a few things here, but not a lot.
Today, I read a post on LiveJournal from a friend who posts everything to two different blogs. It seems as if there is a real need for some good tools to facilitate using mutliple blogs, crosslinking etc...