One of the features of WordPress 3.0 is it combines into the core the MU branch. WordPress MU is what powers multi-blog sites like WordPress.com and while it includes all that is needed to allow users to sign up for their own blogs, you don’t have to allow this. Even if you just have a few WordPress sites (and given that it makes a fine basis for a CMS, I assume many people may have) running them on the same installation means update once, themes and plugins can shared, and a common user base maintained. The only thing that put me off before was that some plugins were not compatible with MU. Read the rest of this entry »