Considering we don't hear about problems that often, this is quite an impressive feat of engineering. You really don't think about it until we get a hiccup and half the Internet goes down.
> Every call for Ballmer's ouster ignores two important points. He is the second largest shareholder. His college buddy is the largest.
This is an important point. These types of articles imply that he's running the company as an ego trip instead of a heavily-invested individual shareholder. Very key to keep in mind.