Wikipedia
Readers of this blog know I like Wikipedia, though I don't entirely trust it. Is it trustworthy? I think so, and so do some researchers. From The Atlantic Monthly:
[Wikipedia] is not much worse than the online version of the legendary Encyclopedia Britannica, according to a study conducted by Nature. The magazine's researchers matched up entries from the two encyclopedias and obtained expert evaluations of forty-two pairs. The experts found a total of eight "serious" errors (defined as mistaken interpretations of important concepts)four in Wikipedia and four in the Britannica. Combined, the Britannica's entries contained 123 "factual errors, omissions, or misleading statements," and Wikipedia's had 162; in other words, the professionally produced encyclopedia had three errors for every four in the amateur one.
