Wikipedia community to interact in a personal way. Wikipedia has been subject to several kinds of criticism. For example, the Seigenthaler and Essjay incidents caused criticism of Wikipedia's reliability and usefulness as a reference. The complaints related to the community include the effects of users' anonymity, the attitudes towards newcomers, the abuse of privileges by administrators, biases in the social structure of the community, in particular, gender bias and lack of female contributors, and the role of the project's co-founder Jimmy Wales, in the community. Sue Gardner, former executive director of the Wikimedia Foundation, described Wikipedians as being like a "crusty old
The Wikipedia Revolution Lih describes the importance of early influences on Wikipedia including Usenet, Hypercard, Slashdot, and MeatballWiki. He also explores the cultural differences found within sister projects such as the German Wikipedia, the Chinese Wikipedia, and the Japanese Wikipedia. The book also covers the Citizendium project, originally a fork of Wikipedia by co-founder Larry Sanger. There is a foreword by Wales, and an afterword partially created by volunteers through an online wiki detailing the problems and opportunities of Wikipedia's future. The Wikipedia Revolution The Wikipedia Revolution: How A Bunch of Nobodies Created The World's Greatest Encyclopedia is a 2009 popular history book