Derek Sivers (musician and founder of CD Baby, the largest seller of independent music on the web) is awesome.
The guy always drives a point home in a very down-to-earth way, taking complex concepts of success and making them seem more attainable.
Take for instance this talk at TED2010 in which he demonstrates how to start a movement in under three minutes. Using a surprising visual of people dancing in a field, Sivers shines a whole new light on how to hit a tipping point.
See Also:
Derek Sivers
TED