The Microsoft.com operations guys have a blog. Stop, think for a minute. The ops guys who run the largest website in the world have a blog where they share tips, tricks, gotchas and best practices. Consider the strategic value you can get from what they are giving away for free. What other enterprise IT shop offers this? None. Zip. Zilch. Nada.
Example: this excellent post on their experience running microsoft.com on 64 bit Windows. Or, look at the one about setting up baseline perfmon logs. They'll even be sharing their scripts.
If you are involved with enterprise IT, you should run-not walk- to your nearest RSS aggregator and subscribe these guys forthwith.