I'd like to add a sidebox to my blog that shows a few related posts. This sidebox would only be visible when you are viewing a single blog entry. I've figured out how to add the sidebox. What I need advice on is how to grab and display the related posts.
By related I am thinking this would look at the tags associated with the blog entry and then show titles and excerpts of the 3 most recent posts that contain 1 or more of the tags associated with the blog entry.