In my view David Snowden brings knowledge management into alignment with Karl Weick's world of sensemaking and positive organizational scolarship.
Dave Snowden is the director of the new IBM Cynefin Center for Organizational Complexity.
His Cynefin model (download PDF file) is the best integration of knowledge management that I have seen. It is profound and it addresses intersections of LEADERSHIP, CULTURE, COMMUNITY, BUREAUCRACY, CHAOS, EXPERTISE and more.
I am working to understand Dave Snowden's thinking on the third age of knowledge management. He moves beyond knowledge as a thing to "knowledge as an active process of relating."
With a little more work on this reader's part his ideas will be personally usable. Here are my notes on Snowden's article "Complex acts of knowing--paradox and descriptive self-awareness" from a special issue of the Journal of Knowledge Management.