А вот свежая информация. Том Петерс пишет:
Wikipedia and Encyclopedia Britannica are about equally accurate when it comes to science articles, John Paczkowski says in an article in Good Morning Silicon Valley. "A study published in the journal Nature Wednesday [12.14] found that in a random sample of 42 science entries, the collaborative encyclopedia averaged four inaccuracies to Britannica's three. 'Only eight serious errors, such as misinterpretations of important concepts, were detected in the pairs of articles reviewed, four from each encyclopedia,' reported Nature. 'But reviewers also found many factual errors, omissions or misleading statements: 162 and 123 in Wikipedia and Britannica, respectively.'"