Anything built in an ad-hoc, bottom-up manner by a collection of individuals who are more-or-less peers.  (cf. p2pfoundation.com)

Research has shown that a crowd of average people creates a mean that is better than the average '''expert'''.  (citation to look up:  guessing the weight of cows at a fair).

Alternatively: Data, services, content or feedback obtained from the general public, or the use thereof, typically via the Internet.  E.g., "We crowdsource articles for our Website."

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CategoryCommunity