There have been a number of changes to the MSDN library of late, and to the way it is integrated with Visual Studio 2010. Kathleen McGrath and Mark D'Urso have created a nice little video that walks you through some of the new features such as the classic, lightweight and script-free views, as well as the new feedback mechanism. If you have questions about how the new features in the library work you might find that this is a useful way to spend 9 minutes and 36 seconds.
You might also enjoy Kathleen’s video interview with Ryan Linton. It focuses on using help from inside Visual Studio.