V-Ness on Customizing Work Items in Visual Studio.
The VS Team Architect Blog on Rosario April CTP.
The NW Cadence Blog on Team System 2008 SP1 and Power Tools.
Willy-Peter Schaub on Team Foundation Server - Why can all valid users see all Team Projects? and MVP Global Summit - Day 3 and Day 4.
Martin Hinshelwood on TFS Stick Buddy v0.4.0 CTP2 released.
Jeff Beehler on How DevDiv uses TFS.
The Teams WIT Tools Blog on How Microsoft/DevDiv uses TFS - Chapter 4.
Maor David on Rosario Preview #2 - Team Build.