A fun Marvel Comics character collaboration graph constructed by Cesc Rosselló, Ricardo Alberich, and Joe Miro from the University of the Balearic Islands. The Marvel Universe, that is, the artificial world that takes place in the universe of the Marvel comic books, is an example of a social collaboration network. They compare the characteristics of this universe to real-world collaboration networks, such as the Hollywood network, or the one created by scientists who work together in producing research papers. See arxiv.org.
The Marvel Universe is an artificial social network that pretends to imitate a real social graph, but is closer to a real social graph than one might expect. This data, and a following analysis of how the graph has grown, can be used to contrast and refine the models for the social graphs that have been used to date, the ones that later on will imprint subjects as dissimilar as epidemiology or security.
Data is arranged as a labeled set of tab-separated (.tsv) adjacency pairs describing (character,comic-book) pairs.