Via Internet Commentator, I found this map showing how the US is divided up by whether people call soft drinks "coke", "pop", or "soda". It is, as Frank says, pretty:
It also clears up a puzzle for me, which is why I use "soda" and "pop" pretty much interchangeably. Most of the northern half of the US uses "pop", but there are two exceptions. One is the strip of Wisconsin that runs along Lake Michigan. So even though I grew up in Chicago, my mother's relatives all lived in Wisconsin, so I spent a lot of my youth there (met "she who is without equal" there too). That is about as close as I get to being bilingual. Actually, in this case, I am trilingual. In Ireland, I say "mineral".
