An American case study can be found here:

http://www.aiim.org/Resources/Publications/Case-Studies/Bonneville_County_Government_Scanning_Solution_SharePoint

For the uninitiated, "What is Sharepoint?" : http://www.aiim.org/What-is-Microsoft-Sharepoint

And finally "8 Things you wanted to know about Sharepoint but were afraid to ask" : http://www.aiim.org/Resources/eBooks