Via both Cosma Shalizi’s Pinboard feed and an email tip, this map of the geographical origins of racist tweets in the US shows a rather striking pattern.

For a very different representation of geographic data, Mark Newman has some very nice new cartograms of voting in 2012 (Gastner, Shalizi and Newman’s original cartograms of the 2004 election, which received widespread circulation, are still available here ).

[Cross-posted at The Monkey Cage]