In this map from Randall Munroe of XKCD.com, social networks and other online communities are represented by kingdoms. Myspace dominates this mythical world, the internet giants such as Yahoo and Microsoft are relegated to the "frozen north", and blogs appear as a scattered archipelago. Now, all we need is this skin on a version of Risk, the global domination game, in which players can fling armies of users against their bitter rivals.

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