With little notice from the outside world, the community-written encyclopedia Wikipedia has redefined the commonly accepted use of the word "truth." Why should we care? Because Wikipedia's articles are the first- or second-ranked results for most Internet searches. Type "iron" into Google, and Wikipedia's article on the element is the top-ranked resu its article on the Iron Cross is also first. Google's search algorithms rank a story in part by how many times it has been linked to; people are linking to Wikipedia articles a lot.
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