Here's the Ultimate MLB Territory Map as Determined by Facebook Activity
Remember this old thing? That map stinks! We live in the future now -- we can chart our sports allegiances with the hyper-granularity of social data. Hence, the above map, charting MLB team territory based on their Facebook popularity in each county.
The biggest change from the old map? The previously "unincorporated territory" has been colonized by the Red Sox and Yankees.