The Royals' Sphere of Influence

This is a cool site that attempts to find out what people identify with what sports teams.

http://commoncensus.org/sports.php

Poke around on the site, put your own votes in.  The more people who vote, the more accurate the maps are.  I think it's pretty interesting.

For some strange reason, this was called a "one-line" diary.  Um, to make it 300 characters I'll talk about how Red Sox "Nation" truly is a nation.  That's a lot of people who identify with it.  The Yankees are actually fourth behind the Cubs and Braves in terms of numerical votes.  I guess their extent is also largely international.  I'm also surprised that the Rockies don't extend so far since there are no other teams around (like the Astros do).  I guess that area just doesn't care about baseball.

EDIT: I suppose I should mention that there are higher-resolution maps on the site.