From Tree House to Barracks: The Social Life of Guilds in World of Warcraft. - Dmitri Williams; Nicolas Ducheneaut; Li Xiong 007; Yuanyuan Zhang; Nick Yee; Eric Nickell (Games Cult., 2006)

As real as real? Macroeconomic behavior in a large-scale virtual world. - Edward Castronova; Dmitri Williams; Cuihua Shen; Rabindra A. Ratan; Li Xiong 007; Yun Huang 001; Brian Keegan (New Media Soc., 2009)