Larry Prusak has written an introduction and highlights some of the more important points. Here is the key one he makes:
The ﬁrst highlight that stands out is the very substantial value the respondents place on the identiﬁcationof “critical” knowledge. This is essential, yet often difﬁcult to do. It's essential because without this activityone can drown in the huge amounts of “stuff” labeled knowledge in any organization, which leads to greatwaste. It also gives knowledge activities a bad reputation. At the same time, it is difﬁcult to do, because thevery word “knowledge” encompasses many forms of “knowing” that are more tacit and, not only uncodifed,but often not easily codiﬁed at all. We sometimes call this type of knowledge “know-how” or practiceknowledge, and it is often difﬁcult to identify in ways that make it more scalable and effective.
Credit: Larry Prusak