Wikipedia – A New Community of Practice? O'Sullivan discusses the group's aims; its community and make-up; its costs of doing business (transaction costs); its relations with the public; and its legacy. The second part of the book applies the group theory approach to Wikipedia, devoting a chapter to each aspect. Chapter 10, on the structure of Wikipedia, explains the use of "talk pages" and . Chapter 13, "Wikipedia and the Nature of Knowledge," explores the question of expertise. In this chapter O'Sullivan claims a fundamental disagreement between Wikipedia's two founders, Jimmy Wales and Larry Sanger. While Wales, an admirer of the economist Friedrich Hayek, believed in the
Jimmy Wales of a Chicago futures and options firm. In 1996, he and two partners founded Bomis, an adult web portal featuring entertainment and adult content. The company would provide the initial funding for the peer-reviewed free encyclopedia, Nupedia (2000–03), and its successor, Wikipedia. On January 15, 2001, with Larry Sanger and others, Wales launched Wikipedia—a free, open content encyclopedia that enjoyed rapid growth and popularity; as Wikipedia's public profile grew, he became the project's promoter and spokesman. He is historically cited as a co-founder of Wikipedia, though he has disputed the "co-" designation, declaring himself the sole founder. Wales serves on