these maps over at Business Insider, Portland is on the border between "soda" and "pop", and I'm just one more domino in the encroaching Californication of the entire world.
It's no secret Americans talk differently. We have a big country with many regions and we are theoretically a melting pot. (Or a stew? I think that's what my high school history teacher told me.) Anyway, those maps are really fun to look at.