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Welcome! We are an encyclopedia project, and more. We are a different sort of Web 2.0 project: We aim at credibility and quality, not just quantity. We offer gentle expert oversight. We use our real names, not pseudonyms. We're collegial. We have added over 2,600 articles since November 2006. Join us! New authors and editors welcome! Response within 24 hours, guaranteed. Learn about us For readers: About the Citizendium. For contributors: How to get started as an author. Project Home. Support us We're a 501(c)(3) non-profit, and we need your support. If you shop at Amazon or Barnes & Noble and you access these sites by the links provided here, we'll be getting donations at no cost to you (read more) - Search All Products.		Some of our finest [ about ] Approved Articles Developed Articles (over 600) Article of the Week [ about ] A butler (second from left) overseeing preparation of a meal in the White House's Family Kitchen during the Bill Clinton administration.Template:Photo The butler is a senior servant in a well-to-do household. The position has existed for centuries but in modern usage the butler is in charge of food service, is the custodian of wine, spirits, and silver, supervises other servants, and sometimes performs other duties. The butler is usually the most senior staff member, although this too has evolved over time. Today, especially in the grandest homes or when the employer owns more than one residence, there is sometimes an Estate Manager of higher rank than the butler. [more...] New Draft of the Week [ about ] Epidemiology is the study of disease in human or animal populations. It includes the study of patterns, circumstances, causes and control using statistical determinations of incidence, frequency, prevalence and distribution....[more...]