Is it possible to run multiple WordPress websites with just one install of the WordPress software? The answer is yes. It has been yes since the release of WordPress 3.0. Prior to that, it was a qualified yes.
Prior to the release of 3.0, you could use WPMU (WordPress Multi-User) to run multiple sites on a single install. The folding of WPMU into WordPress core was, in my opinion, the main reason that the release deserved to be 3.0, rather than 2.WhateverWouldHaveBeenNext.
When WPMU was newish, and newly appointed as the official method of multi-site WordPress, I ran a blog about WPMU: How Do You MU? I kept track of WPMU installations.
I also did a survey of WPMU administrators. That was 5 years ago, so it’s ancient history. But ancient history can be interesting, so you might want to check out the posts including the results of the survey.
It would be interesting to see a survey of multisite networks on WordPress. I’ll do one if given sufficient encouragement…
This post is part of an occasional effort to consolidate my blogging efforts. Almost everything new will be here at Changing Way.