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 the Wikimedia Foundation Board of Trustees, the non-profit charitable organization that he helped establish to operate Wikipedia, holding its board-appointed "community founder" seat. In 2004, he co-founded Wikia, a for-profit wiki hosting service. His role in creating Wikipedia, which has become the world's largest encyclopedia, prompted "Time" magazine to name him in their 2006 list of "The 100 Most Influential People in the World". Wales was born in Huntsville, Alabama, shortly before midnight on August 7, 1966; however, his birth certificate lists his date of birth as August 8. His father, Jimmy, worked as a grocery store manager, while his