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The “knowledge society” imposes dramatic changes on every productive sector. Firms are following new organisational schemes with consequences on the workforce definition and stocks evaluation. Transfering knowledge for development on a worldwide scale is becoming critical, as shows the exemple of medicines.In this situation, new enclosures on the immaterial are locking knowledge in developed countries. But new social movements of the digital age are trying to extend public domain and to build new knowledge and information commons. These movements meet the developing countries agenda, trying to define a new economic and geopolitic world equilibrium.Two questions are keys on these new public organisational structures for the information era: the acces to knowledge criterium and protection of privacy.