scribu

AppThemes

With this plugin, super-admins can:
<ul>
<li>view any theme on any site, without enabling it</li>
<li>access any site through Admin Bar -> My Sites, without having a role on it</li>
</ul>
Intended for <a href="http://scribu.net/wordpress/the-future-of-multisite.html" rel="nofollow ugc">small Multisite installs</a>.

Hyper Admins

Simplify administration tasks for super-admins.

WPManiax

This plugin ads Metro style social share widget to your sidebar.
5 most popular social networks supported.
Metro Share Widget is super easy to install and configure.
More <a href="http://www.wpmaniax.com/metro-share-widget/" rel="nofollow ugc">screenshots and live sample</a> you can see on plugins’ home page
Main Features:
<ul>
<li>Easy to install and configure</li>
<li>Most popular social networks supported (Facebook, Twitter, Google Plus, LinkedIn, Reddit )</li>
<li>Fully responsive</li>
<li>Configure where to show (posts, pages, home)</li>
<li>Metro style elegant design</li>
</ul>
<h3>Feedback</h3>
http://www.wpmaniax.com/metro-share-widget/

Metro Share Widget

Add Metro style social share widget to your sidebar. 5 most popular social networks supported

Hyper Admins vs Metro Share Widget