How do you create a community of multiple users with WordPress blogs? WordPressMU, or WordPress, is the hosted version of WordPress, also known as the multi-user version of the the WordPress blogging application.
It is ideal for people wanting to offer a hosted version of WordPress, but “due to its complexity, installation and maintenance is not supported in the same manner as WordPress”. Also, it offers limited WordPress functions to users.
WordPressMu is not designed for multiple blogs but multiple users, creating a community of WordPress users using WordPress for their blogs. Only one blog per user is allowed, but you can have unlimited users, and you can have multiple users on a single blog. WordPress.com is a good example of this service. It provides an opportunity to provide free hosting, options for adding plugins, themes and administration features. Users can have different permissions on different blogs. Read more at WordPress codex.
With WordPressMU, you can offer users free blogs with no installation or setup and a chance to test drive WordPress. Download WordPress Multi-User edition.