Ron Rennick

The document repository is designed to provide a central revisioned repository for documents in WordPress network being implemented as a content management system. However, it can be used in single WP sites and supports cross domain implementation via JSON.
Features
<ul>
<li>Download via permlink – The document post permalink delivers a direct download of the current version of the uploaded document. </li>
<li>Document revisions – On upload of each document, a new revision of the document post is created. Previous versions remain attached to prior revisions.</li>
<li>Version independence – The permalink to the most recent version of the document doesn’t change which enables one time internal or external linking to the document.</li>
<li>Revision download via permalink – Prior versions of the document each have a distinct permalink which delivers a direct download.</li>
<li>Optional custom taxonomies – A custom taxonomy plugin is included to model implementing custom taxonomies with the document post type </li>
<li>Optional custom roles – A custom role plugin is included which permits restricting contributor, author & editor access to document posts based on organizational role</li>
<li>Optiona extras – The extras plugin is included to add a link to document admin to document maintainers’ admin bar & adds a document media type to the edit post area across the network.</li>
</ul>
<a href="http://technology.umw.edu/wordpress101/document-repository/" rel="nofollow ugc">User instructions/documentation provided by University of Mary Washington</a>
This plugin was written by <a href="http://ronandandrea.com/" rel="nofollow ugc">Ron Rennick</a> in collaboration with the <a href="http://umw.edu/" rel="nofollow ugc">University of Mary Washington</a>.
<a href="http://wpmututorials.com/plugins/document-repository/" rel="nofollow ugc">Plugin Page for details</a>

Document Repository

Turn a WordPress site into a revisioned document repository.

crazyloong

WordPress is excellent with a great amount of features. 
But in some time, We don’t need all. So I code the plugins to disable the part of them to optimize our blog. 
If you have any question or find any bug, you can visit <a href="http://goto8848.net/projects/super-switch/" title="Super Switch" rel="nofollow ugc">Plugin Homepage</a> to submit it.
Changelog
<ul>
<li>Version 1.5:
<ul>
<li>Fixed: Upgrade to support WordPress 3.0.x.</li>
<li>Fixed: A bug when activate.</li>
</ul>
</li>
<li>Version 1.4:
<ul>
<li>Fixed: Upgrade to support WordPress 2.8.x.</li>
</ul>
</li>
<li>Version 1.3:
<ul>
<li>Added: I18n support.</li>
<li>Added: The switch for themes update checking.</li>
<li>Added: The switch for recently active plugins.</li>
<li>Fixed: Interface.</li>
<li>Fixed: The switch for core update checking.</li>
<li>Fixed: The switch for plugins update checking.</li>
</ul>
</li>
<li>Version 1.2:
<ul>
<li>Fixed: Some bugs.</li>
</ul>
</li>
<li>Version 1.1:
<ul>
<li>Fixed: Interface.</li>
<li>Fixed: The switch for plugins update.</li>
</ul>
</li>
<li>Version 1.0: First release.</li>
</ul>

Super Switch

As you see, these are a set of switches. You can optimize your blog by this.

Document Repository vs Super Switch