Slate points out the flaws in the map. But before you Yankees fans get carried away, there are a few things the rest of us would like you to keep in mind about this map. First of all, it measures Facebook likes for your team�s page�nothing more, nothing less. Unless or until the Census Bureau decides to add a baseball-fandom question, this is probably the best map we�re going to get, but that doesn�t make it perfect. At the risk of stating the obvious, the map over-represents the sort of fan who goes around liking things on Facebook (cough, San Francisco Giants). It also favors teams with more active social-media presences.... One other thing: Just because you�re the most-loved team in a given county doesn�t mean you aren�t also the most-hated. If Facebook had a dislike button, the Yankees would probably find that they�re America�s team in more ways than one. I've always wanted a dislike button.