Here at WPMU DEV, we’re more than a bit keen on WordPress Multisite. We’ve been developing plugins for it since the old days when it was WordPress MU, and we use it to power Edublogs, a huge network of blogs for educators and students. Personally I also use Multisite a lot. I use it to host client websites, to create sites demonstrating techniques I outline in my books and tutorials, and to keep everything in one place.
The Codex defines WordPress Multisite as:
“A feature of WordPress 3.0 and later versions that allows multiple virtual sites to share a single WordPress installation.”









