Andrea & I use Donncha‘s Sitewide Tags Blog for global content aggregation on any client installs that use sitewide content. Over the last year I’ve made at least a dozen custom versions of it. Most of those do some combination of the features listed below. This week we tested and released...

Spam: it’s a big issue for any blog, but under WPMU you now have a whole network and it increases by a factor of however many blogs you have. And with a dizzying array of spam plugins out there, what’s an admin to do? There’s Akismet, but you may need a license. There’s SK2, which...