MSDN book excerpt: "Enhancing Performance with Caching"
Microsoft has published a chapter of the book, Building Websites with Microsoft Content Management Server, on MSDN!
It's about enhancing the performance of your MCMS website with caching. It introduces the different caching mechanisms used by MCMS and demonstrates how you can apply output caching to postings, channels and even controls. Joel and Stefan wrote most of this chapter, and they did a really great job with it!
Read the chapter here.