Kezz Bracey

This is a simple plugin that adds plugin & theme add & manage shortcut links to the admin bar for Multisite managers.
I’m constantly adding, removing and otherwise managing plugins and themes on my WP Multisite networks. I personally found it tiresome to click through to the plugin and theme management area of my network admin as often as I do, and wanted to speed up the process.
This plugin adds four links to the admin bar as a drop down, allowing 1 click access to add & manage network plugins & themes from anywhere in your network.
NOTE: Only super admins will see these shortcuts.

MU Admin Bar Shortcuts

This is a simple plugin that adds plugin & theme add & manage shortcut links to the admin bar for Multisite managers.

artilibere

Network Blog Manager aspire to be the perfect companion of every Super Administrator of a WP Blog’s Network.
With Network Blog Manager you can find easily every blog in your network due an internal search engine. 
Then you can contact the administrator and have a quick overlook of the number of contents (posts, pages, comments) each blog has.
Extensible with an internal plugin support: you can build your own functionality!
<h3>Features</h3>
Briefly:
<ul>
<li>Ideal companion for Super Admin </li>
<li>Internal Search Engine for Blog’s Networks</li>
<li>Quick Overlook of Multisite’s Instances</li>
<li>Useful SEO Stats: Google and Alexa Ranks, Sites linking in, Average Load Time, Yahoo! Site Links</li>
</ul>

Network Blog Manager

A simple but powerful blog manager to be used in blog networks. Include an internal search engine, statistics, and some useful tool.

MU Admin Bar Shortcuts vs Network Blog Manager