WordPress MU คืออะไร?

WordPress MU is a multi user version of WordPress.

If you’re not comfortable editing PHP code, taking care of a complex
webserver and database system and being pro-active about following
developments of this project then run, don’t walk, to
http://wordpress.com/ and sign yourself and your friends up to free blogs.
It’s easier in the long run and you’ll save yourself a lot of pain
and angst.

WordPress MU features

• Everything WordPress does
• Scaling to tens of millions of pageviews per day.
• Unlimited users and blogs.
• Different permissions on different blogs.
• Ambiguity about how to pronounce its name