Organizational learning contributes to organizational performance. One research question that remains inadequately explained is how learning occurs. Can it be explained by using the acquisition or participation perspectives? Or is there a need for some other view? This paper suggests that learning networks form an important learning environment for knowledge transfer. A case study of a software development and business consulting company is used to test the network perspective on intra-organizational learning. Both exploratory and confirmatory social network analysis of a learning network within the IT company are used to establish learning patterns within organizations. Learning needs to be seen as both participation in communities of practice and a flow of previously acquired knowledge. (Contains 8 tables, 1 figure and 2 notes.)