Ohio State has one of the largest alumni bases in the world, but its might did not appear outside of Ohio (for the most part) in this cool graph released moments ago by the folks at @TwitterSports:
What exactly are you looking at? Twitter breaks it down for us in a post about a similar NFL map:
We looked at the official Twitter handle for every NFL team and used their followers as a signal of allegiance (as opposed to, say, mentioning a team when watching an interesting matchup or talking about your rival).
While it's not scientific, it's probably good for a general idea of the outlay of the land, and it's as we long suspected: It's Ohio against everybody. This Ohioan wouldn't have it any other way.