Stack Overflow: A Knowledge Management tool that delivers the goods?

If you are a programmer and not yet using, abusing, and relying on Stack Overflow, you are missing out. When I ask a programming question on Stack Overflow, I normally get some helpful replies within minutes. This is almost-real-time, distributed technical support that gives the right answers.

How I use Stack Overflow:

• I ask questions to which I know an answer, in case a better way has been eluding me for many years.
• I ask obscure questions to save me hours or days of research and experimentation.
• I ask questions about "the right way to do things" when I learn a new technology.
  

Joel and Jeff, the Stack Overflow lads, are selling the Stack Overflow engine as a product. It might just be the enterprise knowledge management tool that finally works.