the class-o-matic

" Football isn't a matter of life and death," - it’s much more

important than that,” is a quote often attributed to Bill Shankly, the
legendary manager of Liverpool FC. As exaggerations go, this one gets

pretty close to the truth. Millions of fans identify intensely with the highs
and lows of their favourite sports team, perhaps a modern substitute for
the tribal loyalties of bygone days.

Fandom is a bit more complicated than mere tribalism, though. Which

team you support is the result of an intricate compound of ancestral,

regional, social, and sometimes even religious loyalties. And, of course,

personal choice. However, this map of London seems to indicate that

geography is a major factor in fan loyalty.

check out Frank Jacobs's facinating site, concerned with informatics
design and all manner of strange and wonderful maps that you might
imagine.