Have you ever used WordPress MU? It’s the multi user version of WordPress that lets you create a blog for every user who registers with the site. It’s a big favourite, especially for people who want to offer the ability to others to create their own blogs, as it doesn’t cost anything extra to have another blog on the site (no incremental cost).

Well, with WordPress 3.0, WordPress and WordPress MU are being merged together. You’ll have a feature so that any standard blog can be turned into what’s called a Multisite configuration. So it doesn’t matter if your blog is about hosting or about the best acne treatment, you can now convert your site into one that supports multiple blogs with a pretty simple process.