This thesis reports on the results of a quantitative study of various barriers to knowledge sharing in a virtual community of practice within Sigma Kudos, a Swedish multinational organization. The study was undertaken to investigate the under-utilization of a virtual "teamroom". Members' views showed that the biggest barrier involved the way in which people chose to share their knowledge; the respondents preferred sharing knowledge in their existing face-to-face networks. Face-to-face sharing mainly seemed to occur between individuals who had a common ground and shared experiences, and between individuals who were in convenient proximity to each other. Time constraints in combination with perceived lack of intranet site structure implied a redundancy of the teamroom as yet another internal site. Another prominent set of barriers that emerged from the findings was related to aspects of uncertainty and unfamiliarity with the teamroom. Additionally, survey comments revealed the use of teamroom features to be a barrier. To enable co-evolved knowledge structures to occur via the community, it is necessary for management to understand face-to-face sharing behavior in terms of implicit and tacit knowledge. It is vital to change the perception of teamroom sharing as an extra task requiring more time. Moreover, the teamroom needs to be distinguished in context of the greater intranet structure, as well as when it comes to the different sections of the community itself. To foster knowledge sharing in the teamroom, it is also important to define and communicate the strategic meaning of it.