Wikipedia

Wikipedia is an online encyclopedia published in many different languages.  A source that anyone can edit can be a decent sourse because of the many people watching each article, someone with some expertise on the topic should have some input.  Wikipedia uses the collective knowledge of the public to weed out bad information.  Larry Sanger left wikipedia because he thought it should give more of the authority to experts rather than just anyone.  Abuse of a wikipedia page would show up as misleading or wrong information.  The statistic on the number of languages and pages show how widely used the site is.  Wikipedia is so successful because it has a broad knowledge base and is easy to navigate.  Wikipedia does not accept advertising because, in my opinion, the advertising would try to control what the site says.  Wikiscanner help ensure reliability because it shows who posted what in an article.