At the beginning of 2016, Jack Grieve shared the first iteration of the Word Mapper app he had developed with Andrea Nini and Diansheng Guo, which let users map the relative frequencies of the 10,000 most common words in a big Twitter-based corpus covering the contiguous United States. (See: "Geolexicography," "Totally Word Mapper.") Now as the year comes to a close, Quartz is hosting a bigger, better version of the app, now including 97,246 words (all occurring at least 500 times in the corpus). It's appropriately dubbed "The great American word mapper," and it's hella fun (or wicked fun, if you prefer).
— Nikhil Sonnad (@nkl) December 15, 2016
This is one of those moments, like the rollout of the Google Books Ngram Viewer or the New York Times dialect quiz, when a pleasingly designed interface allows users to interact with huge troves of linguistic data, letting people see language (and play with it) in a brand-new way. If you do a Twitter search on "Where Americans use," you can see how much fun people are having with this new data-visualization toy.
(As noted on Quartz, you can download the full dataset, with county-by-county breakdowns for each word, on this page, which also has lots of supporting documentation from Grieve et al.)