NOTES
Introduction
1 Kathleen Lessman, e-mail to author, January 17, 2013.
2 “About Foursquare,” Foursquare, accessed November 18, 2013, https://foursquare.com/about.
3 Google Trends, Google, accessed December 4, 2013, http://www.google.com/trends/explore#q=gamification
4 Nick Pelling, “The (Short) Prehistory of “Gamification,” Funding Startups (& Other Impossibilities) blog, August 9, 2011, accessed November 18, 2013, http://nanodome.wordpress.com/2011/08/09/the-short-prehistory-of-gamification/.
5 “SQUEEZED MIDDLE is named Oxford Dictionaries Word of the Year 2011,” Oxford University Press via PR Newswire, November 22, 2011, accessed November 18, 2013, http://www.prnewswire.com/news-releases-test/squeezed-middle-is-named-oxford-dictionaries-word-of-the-year-2011-134361588.html ...
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