Not as interesting to non US people... or maybe it is?
Many moons ago the IotD featured the Soda vs Pop vs Coke web site, which graphed people's voluntary answers to that etymological question. Harvard has taken this a step further and asked about other words and pronunciations.
In particular I love the HOAGIE result: all of Pennsylvania agrees that the sandwich is not a sub after all. Although we do still have Subways here, and we understand what they're supposed to be, and sometimes we eat them, for the most part we're ordering HOAGIES made by independent sandwich builders. It was, after all, invented on Hog Island for a hearty meal for the working class workers there. And nothing you can tell me will convince me otherwise. I guess.
Discovered by Sycamore... a tip o the hat to the gent.