Notice some activity in my RSS feed? No, don't get too excited - I'm not actually blogging. However, I did move my blog from WordPress to WordPress MU. Here are some thoughts on why and how to do this.
WordPress MU is the multi-user version of WordPress which is used for sites like wordpress.com and edublogs.org. A single WordPress MU site can host many blogs at once. If you have more than one blog this simplifies the process of maintaining, updating, and backup because you can handle all your blogs in one hit. According to the official docs, a single box running both web server and MySQL will get you about 10-20 thousand blogs. WordPress.com currently has over 3 million blogs.