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   title       = {Folksonomy Presentation}, 
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@electronic{josquin.cs.depaul.edu,
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@electronic{www.connotea.org,
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@electronic{www.hpl.hp.com,
   title       = {The Structure of Collaborative tagging systems}, 
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@electronic{www.adammathes.com,
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@electronic{www.dlib.org,
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