New in TFS 2010 are Team Project Collections, a way to make groups of Team Projects. Along with these groups comes a new level of Group Membership and Security management within the Team Foundation Administration Console.
To view or manage your Team Project Collection group membership and security.
- Open the Team Foundation Administration Console
- In the left pane expand Application Tier -> Team Project Collections
- In the top of the right pane highlight a Team Project Collection
- In the bottom of the right pane choose the "General" tab
- On the left of the general tab click either "Administer Group Membership" or "Administer Security"
When you click "Administer Group Membership" you see the following.