"Tagging in and of its self is a helpful step up from no tagging, but is no where near as beneficial as opening the tagging to all. Folksonomy tagging can provide connections across cultures and disciplines (...)"
"Tagging works because it strikes a balance between the individual and social. It serves the individual motive of remembering, and forms a ad-hoc social groups around it."
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L. Heller, R. The, and S. Bartling. Opening Science: The Evolving Guide on How the Internet is Changing Research, Collaboration and Scholarly Publishing, Springer, Heidelberg and New York, (2014)