Knowledge acquisition involving several experts in different time and different places is difficult to perform with old technologies. Internet, Virtual Spaces and 3-D Graphics offer new methods and technologies for knowledge acquisition. In our approach we regard the organisational memory as an artefact in a virtual space on internet. Evolution of knowledge is visualised by refinement of the artefact in the virtual space. Beyond the visualised artefact, hidden from the domain experts, is a notation, based on SGML, describing the artefact at some level of granularity. The SGML-based notation is in our implementation visualised as a building. Our work differs from other approaches in that the experts may move, meet and communicate inside the knowledge repository. Due to constraints of equipment, network and virtual spaces software of today we propose and implement an intermediate architecture (KAVS) to study aspects of knowledge acquisition in a distributed environment.