Source: San Francisco Chronicle — July 5, 2014 | Julian Guthrie
Source: Reason — May 9, 2013 | Tracy Oppenheimer
Source: Women 2.0 — March 26, 2012 | Susan Fonseca
Source: The Wall Street Journal — February 22, 2012 | Michael Shermer
Video Source: Kurzweil Music Systems
Source: Kurzweil Music Systems