What the !$#% was this plugin for anyway?! Maintaining a sustainable WordPress Multisite install

Plugins and themes offer exciting possibilities, but too many can equal too much excitement, especially in Multisite. We’ll discuss best practices to promote stability and ease of upgrading, while supporting user needs. We’ll also share tips on cleaning up WordPress, based on our experience of weeding plugins and themes, and on taking advantage of 3.0′s nifty new features.