Zombies and social media make a perfect pairing, says Robert Kirkman, creator of "The Walking Dead" graphic novel and TV series. Kirkman has 112,000 Twitter followers in his own right, while his zombie show has racked up about 7 million Facebook "likes" and almost 300,000 Twitter followers. "It's very much about the fall of civilization and people banding together in order to survive. So not only does the theme jibe with many people's fears, it also translates well into social media," Kirkman says.
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