Jason Kincaid, “The Secret Sauce That Makes Facebook’s News Feed Tick”, TechCrunch, April 22, 2010, http://techcrunch.com/2010/04/22/facebook-edgerank/
160
Eli Pariser, The Filter Bubble: What the Internet Is Hiding from You (New York: Penguin Press, 2011), p. 5.
161
Barry Schwartz, “Duck! Google’s Cutts Responds to Search Filter Bubbles”, Search Engine Roundtable, June 21, 2011, http://www.seroundtable.com/google-search-bubble-response-13591.html
