Microsoft's Patterns & Practices has a tool that provides navigation of published Guidance. This guidance is a bit scant, but the tool allows you to add to it as well. So, this would be something that could be integrated into your development environment allowing team members to navigate, search, look for guidance items. Simple tool, simple concept, but good one.
The download is here: http://www.codeplex.com/Wiki/View.aspx?ProjectName=guidanceExplorer
However, they now have it hosted at www.GuidanceLibrary.com so, you can skip the really simple install - which is just a zip, unpacked, and double click on an exe...
Link to Guidance Explorer Online (beta)