Our Alfresco Share Dashlet which we implemented for 2011 Alfresco Share Dashlet Challenge got listed as an Alfresco add-on.
The Site Dashlet provides statistical information about No. of Documents, Wiki, Blogs, and Forums for a specific Site for a particular user as well as for all users in a Graphical manner. In addition to that, there is a User Dashlet, which will display information about all Active Workflows and Completed Workflows for any user. The Stats can be shown for the current year, any single year or range of years.
You can freely download it from: https://addons.alfresco.com/addons/site-statistics