In this vein, if you want this kind of functionality, the following might be worth checking out--a plug-in for WordPress that turns it into a version-control system for any type of file:
"WP Document Revisions is a document management and version control plugin. Built for time-sensitive and mission-critical projects, teams can collaboratively edit files of any format -- text documents, spreadsheets, images, sheet music... anything -- all the while, seamlessly tracking the document's progress as it moves through your organization's existing workflow."
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In this vein, if you want this kind of functionality, the following might be worth checking out--a plug-in for WordPress that turns it into a version-control system for any type of file:
http://wordpress.org/extend/plugins/wp-document-revisions/
"WP Document Revisions is a document management and version control plugin. Built for time-sensitive and mission-critical projects, teams can collaboratively edit files of any format -- text documents, spreadsheets, images, sheet music... anything -- all the while, seamlessly tracking the document's progress as it moves through your organization's existing workflow."
More info (incl. screencast):
http://ben.balter.com/2011/08/29/wp-document-revisions-docum...