Just for fun, found this link on Valleywag tonight:
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.
Of course, I can’t seem to find my favorite online communities, eBay & LinkedIn anywhere on this map. But still fun. I particularly like the Sea of Memes.