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.

Zhuo

Revision is a very useful stuff when you experienced an unexpected power failure or keyboard got peed by your cat while you’re writing an article or just simply revise what you’ve wrote. After you’ve “finally” posted your article, the revisions, still consuming your SQL database as long as the database last. To save your database storage, wipe out the revisions is necessary and this is what Revision Cleaner do in AUTOMATICALLY and safely (won’t delete any draft 🙂 ). “Clean interval” setting support multiple-users, they can set their own clean interval (admin can control it and assimilated everyone of course).Email:wordpress(at)mengzhuo.org
<h3>Languages</h3>
If you like to translate Revision Cleaner, the .POT file in the “po” directory under plugin directory. 
 after you’ve translated it please send it to mengzhuo1203(at)gmail.com, and attach with po file name by what your language called in English.

Revision Cleaner

This plugin will clean up your revisions AUTOMATICALLY (each authors can set their own interval). Once setup, ENJOY your writing.

Document Repository vs Revision Cleaner