Using the the Chrome language detector library, Eric Fischer, was able to make this fantastic map of the world according to languages used on Twitter. Each different color represents a language that was a detected in a geolocalized tweet on the social network. It's a bit hard to see on the image above as the original map is way wider so make sure to check the full size image on Eric's flickr account. And there's a lot more really cool maps there!

Here are some interesting details of the map:

Europe is obviously one of the most colourful areas due to the multiple various languages spoken on a smaller territory.

Northern America is mostly grey (English) but has a pocket of French in Quebec and Spanish in the South of the US.