Best Friends: Alliances, Friend Ranking, and the MySpace Social Network
Perspectives on Psychological Science (2011) - Comment
pubmed: 26162107  doi: 10.1177/1745691610393979  issn: 1745-6916  issn: 1745-6924 

Peter DeScioli, Robert Kurzban, Elizabeth N. Koch, David Liben-Nowell