The main goal of this article is to describe the investigation conducted in themasters' thesis project: Digital Medellín – communities of practice and informationand communication technology for organizational development. This is done by givinga description of the background, problem area, the method and theories suchas ethnography, a socio-cultural perspective and the concept of communitiesof practice. Two case studies are presented and discussed. The findings of theresearch are stated in the form of three principal conclusions.