I've been thinking about this. I know a fair amount about Bayesian statistics (less about classical statistics), but I'm not sure where introduction to topics like this would fit in. For example, the topic that springs to my mind is an introduction to least-squares estimation: why it makes sense from a bayesian perspective, what it's assumptions and limitations are, and how to do it. However, this topic seems too parochial to do make a post (and also covered in the statistics book I recommended). Would it fit in in the discussion section?