"PKM is what individuals practice in order to fully participate in Little KM. I would say that PKM is the most important to keep organizational learning alive. Individuals who are actively engaged in their sense-making will likely be more participative in Little KM, and their sharing (as in Seek-Sense-Share) will contribute to Big KM. Imagine an organization where everyone blogs professionally. It would be very easy for an organizational curator to weave together the narrative threads from all employees, thus feeding into a Big KM system."
Via Howard Rheingold