Those of you who are following events in and around Ukraine may find this map as interesting as I do; it shows the distribution of languages by locality (if you click on it, you can see a much larger version). The legend is in Ukrainian; from top to bottom, the languages are Ukrainian, Russian, Romanian/Moldavian, Crimean Tatar, Hungarian, Bulgarian, Gagauz, Polish, and Albanian.
Update. Here‘s an English version of the map (thanks, Christopher!).