This page is always a fun read when talking about the soda/pop/coke controversy.

Sadly, the zoomable java map seems to be disabled now.. It was always fun to zoom into the state of Pennsylvania and see the battle line between Philly (soda) and Pittsburgh (pop.) Having grown up in Philly and gone to school in State College (nearly equidistant between Philly and the Burgh) it was always fun to get into soda/pop wars.