I am a little surprised that it just provides a simulated model; Yahoo ran a famous experiment which does
exactly what demonstrates his point about randomness and media success being only weakly correlated with success: "Experimental Study of Inequality and Unpredictability in an Artificial Cultural Market"
http://www.princeton.edu/~mjs3/salganik_dodds_watts06_full.p..., Salganik et al 2006; Salganik & Watts 2009,
http://www.princeton.edu/~mjs3/salganik_watts09.pdf "Web-Based Experiments for the Study of Collective Social Dynamics in Cultural Markets";
http://cultural-science.org/FeastPapers2008/AlexBentley1Bp.p... ; "Leading the Herd Astray: An Experimental Study of Self-fulfilling Prophecies in an Artificial Cultural Market"
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3785310/ , Salganik & Watts 2008.