Quick post to give a shout-out to Karl Seguin for his recent "Back-to-Basics" articles on CodeBetter.  He's done two so far, the first on generics and the most recent on delegates, anonymous methods, and Lambdas.  Karl does a really nice job of writing these posts in a manner that isn't condescending, yet explains the basics of these critical concepts for advanced development.  Good examples, good summarizing, good work!