Wikipedia’s MissionWikipedia’s RootsAncient Greece to Today: EncyclopediasLate 17th Century: The Modern EncyclopediaWikipedia as an EncyclopediaThe 1960s and 1970s: Unix, Networks, and Personal ComputersThe 1980s: The Free Software MovementWikipedia and the Free Perspective1995: Ward’s Wiki1997: Open Source Communities2000: Online Community DynamicsWikipedia as a Wiki Community2001: Wikipedia Goes LiveWikipedia TodayUnfinished BusinessThe Wikipedia Model DebatedMisinformation: The Seigenthaler ScandalAmateur Contributors, Authority, and AcademiaWikipedia and Academic AuthorityWikipedia and ExpertsCase Studies in Academic AuthorityPseudonyms and Claimed ExpertiseThe Crowd of AmateursSummary