Where did you grow up? I grew up in southeast Ohio, and "pop" was the word of choice. When I moved to Maryland, waitresses didn't know what I was talking about when I asked what kind of pop they served.

>>>This was interesting...
>>>http://www.hcs.harvard.edu/~golder/dialect
>>Yeah, that's a good site. Have you seen http://www.popvssoda.com/?
>
>I hadn't, but I just submitted "soda" for my home town -- not that it needed the help. :-)