Marcus (aka @msykes)

=THIS PLUGIN IS ONLY USEFUL IF YOU’RE USING MULTI-SITE MODE=
This is the same plugin previously available at <a href="http://firestats.cc/wiki/WPMUPluginCommander" rel="nofollow ugc">http://firestats.cc/wiki/WPMUPluginCommander</a>, which has been used reliably with wordpress multi-site networks for many years.
Plugin Commander is a plugin management plugin for multi-site mode, which allows further control on network-activated plugins.
It allow you to do the following things:
<ul>
<li>Mark any plugin in the plugins directory to be automatically activated for new blogs.</li>
<li>Mass activate or deactivate a plugin for all existing blogs</li>
<li>Choose which plugins users can activate and deactivate through Manage->Plugins, for this to make sense you need to disable the built-in plugins menu (through Site Admin->Options->Menus)</li>
<li>Activate and deactivate plugins for specific blogs, even if the blog owner is not allowed to control those plugins.</li>
</ul>

Plugin Commander

Plugin Commander is a plugin management plugin for multi-site mode, which allows further control on network-activated plugins.

jroakes

This plugin will give you the ability to pull up any (non-Super Admin) user and in one click add that user(with a global role) to all sites in your MU install. Likewise, if you want to remove a user from all sites it is one click as well. CAUTION: WordPress has an optional mechanism when deleting a user from a site that will allow you to assign that users posts to another user. I have ignored this for this release. Please take a DB backups until you are used to this plugin and Multi-Site.

Multi-Site User Replicator 3000

WP3.1 multisite "mu-plugin" that allows you to add a user to all sites or no sites. Just drop in mu-plugins.

Plugin Commander vs Multi-Site User Replicator 3000