Try http://support.microsoft.com/support. It tends to be very slow at certain times but it can be extremely useful when it does work. It also comes on the TechNet CD, so if you subscribe to TechNet that's another option.

There's also a Knowledge Base here on the UT. Just click the purple book icon.

>I am trying to access Knowledge Base, but cannot locate it. I tried MSFT's search, but IE just spins, spins, and spins.
>
>Can anyone give me a URL for this resource?