Nice post, Harold. I enjoy following your PKM musings. I agree PKM is extremely important and a good (maybe the best) starting point for corporate KM. Most KM programs leave out 'what's in it for the employee?'. What I was wondering though is, what are your thoughts about internal and external PKM? One of the things that I find hard is what part of my personal knowledge to share and store internally and what externally. I don't know of many tools to support PKM that seamlessly support internal and external PKM. Do you? And what would your approach be to this issue?