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Open Source has become an important phenomenon in the field of software business, as Open Source can be seen as a viable alternative for traditional, proprietary way to develop competitive software solutions. Open Source bases on a networked way to develop software – networks are formed within one specific Open Source project (i.e. internal network) and between several Open Source projects (i.e. external network). This paper presents a case study of an Open Source project called Laika and its external network formed with other related Open Source projects. The network analysis of Laika is carried out both from technological and business-oriented viewpoints and by following qualitative research methods.