DeannaS

kgraeme

This plugin allows site admins to turn on and off the following widgets on the WPMU dashboard (for all users):
<ol>
<li>Primary Feed</li>
<li>Secondary Feed</li>
<li>Incoming Links</li>
<li>Recent Comments</li>
<li>Recent Drafts</li>
<li>Plugins</li>
<li>Quick Press</li>
<li>Right Now</li>
</ol>
In addition, site admins can override the primary and secondary feeds.

WPMU Simple Dashboard

This plugin lets site admins control which features are shown by default on all user's dashboards.

Enej Bajgorić

ctlt-dev

oltdev

An easy way to modify the css globally on your site.
As an admin you are able to edit the css from the front end.

Improved Simpler CSS

Add the ability to add css to your existing style sheet.

WPMU Simple Dashboard vs Improved Simpler CSS