The official documentation is at: http://docs.alfresco.com
Microsoft saw the open-source threat early on
Early comments (Anti-American, cancer, etc.)
Culminating in Microsoft's patent war against Linux and open source.
And yet Microsoft is starting to warm up to open source in some areas:
Embedding in Visual Studio
Why is Microsoft has the most to lose from open source
Microsoft's business model is under siege from open source.
Microsoft's new IP chief believes in milking the patent machine.
Microsoft needs open source to cost more than $0.00.
Open Source Book