Difference between revisions of "Crowdsourcing"
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[http://www.crowdspring.com/ Crowdspring] | [http://www.crowdspring.com/ Crowdspring] | ||
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| + | [http://www.istockphoto.com/ iStockPhoto] | ||
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| + | === Other === | ||
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| + | [https://www.mturk.com/mturk/welcome Amazon's Mechanical Turk] | ||
