Group Documents creates a page within each BuddyPress group to upload and store documents.  Documents can be edited and deleted either by the owner or by the group administrator.  Document activity is logged in the main activity stream, and is also tied to the user and group activity streams.  The site administrator can set filters on file extensions, and soon (in the next update) users can set email notification preferences.  There is also a “Recent Uploads” widget than can be used to show any number of uploaded documents.

Get it while it’s hot!
Wordpress.org Plugin Download Page

Installation
Make sure WPMU and BuddyPress are installed and active.
Copy the plugin folder buddypress-group-documents/ into /wp-content/plugins/

Browse to the plugin administration screen and activate the plugin.

There will now be a “Group Documents” menu item under the “BuddyPress” menu.  Here you will find a list of all file extensions allowed for uploaded files.  Please check and make sure the list suits you.

Please don’t hesitate to contact me, especially if you run into trouble.  I will respond promptly.  email hidden; JavaScript is required