Edwin Chen, a data scientist at Twitter, created a series of maps based on what tweeters call their soft drinks. Here is one showing how the naming breaks down worldwide (blue is "soda", green is "pop", and red is "Coke"):
Another key finding: "'Fizzy drink' shows up for the UK, New Zealand, and Maine." More Dish coverage of Soda vs Pop geography here.
(Hat tip: FlowingData)
The Dish 