I’m cleaning out the inbox in preparation for the onslaught of “I have my period so I’m not coming to class. Is anything important happening in class today?” emails. Here’s an oldie but goodie: The Michael Jackson sample map (go here for a scalable map), complete with blog entry. H/t Gabriel and Eszter. If y’all can hang on for another month or so, Mark and I will be sending out an actual paper analyzing actual data that looks like this.