Multisite Switcher

Don’t Work in WordPress MU. WordPress 3 only.
Usefull only if you have a multisite install and if some users manages more than one blog.

This plugin adds a simple dropdown menu in administration header that allows you (and every site users) to switch
between administration of every site they are member of (and so work for super-admin, admin, contributors,…).

Work best if the plugin is Network Activate.