This is an article about key issues in Knowledge Management (KM). It is one person's view about some of the main issues dividing practitioners about how to pursue KM, comprehend it, and eventually realize its value. I cannot, of course, cover all of the main issues here. In fact, my view of what they are may not be shared by other writers in the field. Nevertheless, I hope to cover enough of them to provide a good introduction to newcomers and a reminder to experienced practitioners that there's still a long way to go before we have agreement on basic matters concerning us.