This blog runs WordPress:
WordPress is a state-of-the-art semantic personal publishing platform with a focus on aesthetics, web standards, and usability. What a mouthful.
A little rough around the edges, but it’s good enough. The main things I like about WordPress are performance and ease of management. In WP, you don’t have to compile pages into psuedo-static HTML, and it seems to grab stuff from MySQL faster than MT. The user interface stuff is a little rougher, but it’s probably not all that hard to hack, given that it’s all php and stuff.
Very nice software, I give it three out of four stars.