Now, I can't say as I really understand why, but the chaps and chapettes of the Oxford Internet Institute have plotted instances of people performing zombie-related internet searches on a map of the world. The results (see here) correlate pretty well with the English-speaking parts of the world. Which means, in the words of the report: "The results either provide a rough proxy for the amount of English-language content indexed over our planet, or offer an early warning into the geographies of the impending zombie apocalypse." I believe SnowBlog readers are particularly well equipped to judge for themselves which of those two possibilities is the most likely.