Recently, Knowledge Management has attracted a lot of attention in computer science. However, knowledge management is not just about software tools but also - and maybe even more - about people and organizational cultures. Unlike in software engineering, developers at all three levels (A, B, C) do not only need technical know-how but also organizational and solution know-how to develop successful knowledge management software. This paper argues that personalization concepts closely linked to our notion of knowledge are a promising approach to overcome today's barriers in knowledge management. Instead of focusing on system features, our notion of personalization focuses on the adaptation of metadata, content and structure in knowledge management, thus opening up solution-oriented ways of thinking to A- and B-developers of knowledge management software.