UPDATE - Language Map of Europe for Twitter users…According to this map, it looks as the users of Twitter tend to be located around major transportation infrastructures.

“Western Europe glows bright in the Twitterverse as the most linguistically diverse section of the world. Switzerland is a mix of blue (Italian), red (German), and purple (French), with some light blue (Dutch) shadings. Lime green (Catalan) emerges in northeast Spain. Twitter use seems to peter out in Europe somewhere east of the Czech Republic, but the service looks to be pretty popular in Moscow as it is lit up in teal (Russian).”

http://www.theatlanticwire.com/global/2011/11/worlds-languages-according-twitter/44690/

This update has the language legend on the left.

“I really liked these maps both for their cartography but also for their demonstration that linguistic and national borders can be seen online as well. There has also been a tendency for fine scale mapping of Twitter data so it is nice to get a global perspective.”

http://owni.eu/2011/12/09/the-best-maps-of-2011/

“Particularly relevant to Spain is the dominance of yellow Catalan over pink Castilian in Catalonia, a fact which clearly illustrates Spain’s multilingual nature, and the centrality of language to Catalan identity.

The closeness of the modern world presents a clear motive for language-learning. When we have the means of global communication, why allow language to remain a barrier? As far as this concerns me, I find Fischer’s map genuinely inspirational: comparing the overlapping linguistic boundaries of continental Europe with the linguistically homogenous, grey UK makes me more determined than ever to dedicate myself to learning languages, in order to embrace the modern international identity.”

http://www.institutohemingway.com/Language-the-final-frontier-10291.html