Software architecting is a highly knowledge-intensive process demanding and producing a large and rich amount of information. To remain competitive, companies and organizations working in the IT sector must be able to manage this knowledge portfolio and effectively exploit and reuse it. In the era of Web 2.0, knowledge grids, social networking, global development and semantic Web, this working session addresses the problem of building a knowledge community in the field of software architecture. To this end, we aim at exploring the wishes of academics and industrial organizations, on the one hand, and their boundaries on he other. Our goal is to compare and contrast the inputs from academia and industry, and gain a shared understanding about what can be done now, and in the near future.