Harold Jarche has summarized more than 10 years of thinking about Personal Knowledge Mastery (PKM).
More and more, we need to take responsibility for our own learning and development, and Harold has summarized it in the Seek-Sense-Share paradigm. PKM has certainly helped me structure my personal professional learning, and therefore I warmly recommend it.
I have also started relating PKM to designing an intranet, for example via this presentation at the Intranätverk conference in Malmö 2014. It is a start, and in no way finished. But half-baked ideas like this might lead to something productive in the end.