I speak at a few events each year about entrepreneurship, social entrepreneurship, productivity, and achieving goals.
For a sample of topics I talk about, here are a few recent podcasts I was on:
Shoulders of Titans, episode 048: How to Transform Purpose & Passion to Profit and Philanthropy
Impostercast, episode 07: I'll Be Better When I Pay It Forward
Extra Pack of Peanuts: Mountain Biking Around the World