The "buzz" control launched in the MSDN/TechNet Labs today. It leverages cool features available in Microsoft Live Search. Try it with some URL's that have lots pointers like the following...

Cut and paste one of the URL's into the Buzz Control, press go and then use the control to drill around and see the information stitch together for browsing. Cool stuff. 

The Oracle says to keep in your mind that there are no tags, there are no tags...

 Larry W Jordan Jr - Product Unit Manager for MSDN and TechNet Infrastructure Team