While I try and figure out where my words went, and if there’s anything new left to write about multisite that I haven’t already, I’d like to highlight this post from Helen, on customizing the special multisite dashboards. A small thing that can bring great usability to your site if you have more than a [...]
How to add a new Super Admin
When you created a network of multiple sites in WordPress 3.0, you (the main blog admin) because a Super Admin with all kinds of fun powers. In some situations, you may desire to have additional Super Admins who can do things like install plugins & themes, perform upgrades, and manage global users and sites. If [...]
CSS Editor plugins
On some installs, you may want to have the ability to make quick css-only changes to your theme that are applied just to the blog you are on. Or maybe you’d like to give your users this ability, like you can get at wordpress.com. There are a few plugins available to help you do this. [...]
Show user id in site admin
Andy posted some jQuery that showed the user ids on the site admin users screen. I wrapped the jQuery in a plugin which you drop into your mu-plugins folder. Show User ID on Site Admin Users page (356)

