I have several profiles of people who are influencing my work on Conversational Leadership in my blook. John Hagel is one you might find particularly interesting,
John Hagel is a management consultant and author who specializes in helping executives to anticipate and address emerging business opportunities and challenges. He is the founder and co-chairman of Deloitte‘s Center for the Edge.
I don't know John but I love his work, especially his blog posts (see this post on spirit set), not only is he extraordinary insightful but each week, he tweets several links to fascinating scientific discoveries or research.
You can find out more about him, follow him on Twitter or subscribe to his RSS blog feed here.