Do you want to type commands at the command prompt, or write scripts to carry out those same commands? With Windows PowerShell, you no longer have to choose.
Keeping track of the status of a lot of contacts can be a bit trying on a system. It might be a good idea to limit the celebrity status of some of your users by limiting the number of contacts they can have at once.
You may never have imagined just how easy it could be to manage administrator privelages. Or maybe you did. The Microsoft Communications Server team certainly did, and RBAC is the result. Take a look at this introduction to see.
You probably have more than 21 things on your list of things you need to do today. Well, make room for one more: read the list of 21 User Information Commands to Run Before You Die.