"NATE SILVER: As Tempting As It Would Be To 'Drop The Mic' And Leave A Winner, I'll Be Back In 2014 And 2016" by Walter Hickey, www.businessinsider.com. November 14, 2012.
"The Wisdom of Crowds: Why the Many Are Smarter Than the Few and How Collective Wisdom Shapes Business, Economies, Societies and Nations". Book by James Surowiecki, 2004.