scribu

AppThemes

With the current WordPress administration area, the only way to add existing users to a certain blog is by entering their usernames, one by one. It’s very time consuming.
With this plugin, you can do it in bulk, by using the familiar “Change role to…” dropdown:
<ol>
<li>Go to WP Admin -> Users.</li>
<li>Click the “Entire Network” link.</li>
<li>Check the users you want to add.</li>
<li>Choose the new role from the dropdown.</li>
<li>Press “Change”.</li>
</ol>
Note that you have to be a super-admin to be able to do this.

User Management Tools

Allows super-admins to quickly add users to a particular blog in a multisite installation.

Paul

The <a href="http://icwp.io/9g" rel="nofollow ugc">iControlWP WordPress Security Manager</a> is the only solution you need to manage all your WordPress websites.
You need more time and everyday WordPress management eats away at any spare time you create. iControlWP will give you back the time you need to focus on your business.
Our Mission: Give you more free time to focus on your core business
With iControlWP you need fewer WordPress plugins as many tasks you need to perform fall under its umbrella of features. For example:
<ul>
<li>No extra plugins to backups / restores</li>
<li>No extra plugins for uptime monitoring</li>
<li>No extra plugins to optimize your databases</li>
<li>No extra plugins to clean up old drafts, comments and post revisions</li>
<li>No extra plugins to manage WordPress automatic updates</li>
</ul>
With iControlWP you can:
<ul>
<li>Manage ALL WordPress websites from a single, centralized control panel.</li>
<li>One-click update WordPress Plugin (premium ones too!), Themes, and the WordPress Core.</li>
<li>Bulk update all plugins, themes and WordPress cores.</li>
<li>Very finely tune WordPress Automatic Updates for every plugin on every site.</li>
<li>Manage CloudFlare settings using our unique CloudFlare integration.</li>
<li>Insert Google Analytics Tracking code.</li>
<li><a href="http://www.icontrolwp.com/2012/07/optimize-clean-up-wordpress-worpit/?src=wpt_readme" rel="nofollow ugc">Clean up WordPress</a> 
and <a href="http://www.icontrolwp.com/2012/07/how-to-optimize-wordpress-databases-with-worpit/?src=wpt_readme" rel="nofollow ugc">Optimize WordPress databases</a></li>
<li>Manage WordPress Security setting across all your sites.</li>
<li>Install new WordPress websites automatically, anywhere you have cPanel web hosting</li>
<li>Automatically log into your WordPress sites without remembering your WordPress login details.</li>
<li>Collect useful visitor site statistics and view them directly from within your control panel.</li>
</ul>

iControlWP

Manage all your WordPress sites in one place - updates, uptime, backups & security.

User Management Tools vs iControlWP