I came across Software +Services Blueprints (aka S+S Blueprints) which is a good initiative from Microsoft. As the name implies, the blue prints consist of the guidance and sample implementations that have been developed using those guidance.

The most exciting S+S Blueprint is the one for SharePoint and can be found @ http://www.ssblueprints.net/sharepoint/; as of writing this post, the full blue print source code was not available, but you can still download code for the six artifacts shown on the home page.

Check out http://channel9.msdn.com/wiki/default.aspx/Channel9.SoftwarePlusServicesBlueprints for general information about S+S Blueprint.