KB Notify Admin
Introducing KB Notify Admin, a plugin for administrators of WP-MU blogs. Drop this plugin into your mu-plugins folder if you would like to receive an email notification whenever somebody creates a new blog on your WPMU site. Inspired by this hack. But by using my plugin instead of the hack, you don't have to modify any core files, which makes upgrading easier. Developed on WPMU 1.2.2. Untested in earlier versions. I do not follow comments at this site. If you have a comment that you would like me to see, make it at the plugin's page.