1 The Third International OPAALS Conference was an opportunity to explore and discuss digital ecosystem research issues as well as emerging and future trends in the field. The conference was organized by IPTI Instituto de Pesquisas em Tecnologia e Inovação (www. ipti. org. br). IPTI is a member of the OPAALS Framework P- gramme 7 Network of Excellence, which is led by the London School of Economics and Political Science. OPAALS is a multi-disciplinary research network of excellence for developing the science and technology behind digital ecosystems. The conference was held within the scope of a broader EUBrazil bilateral workshop hosted by IPTI in cooperation with the Brazilian government and the European Commission and designed to foster EU support of information and communications technologies (ICT) enablement and socio-economic development in Brazil. The event was held in the city of Aracajú, Sergipe, in the northeast of Brazil, during March 2223, 2010. Aracajú is the capital of the state of Sergipe and is located on the coast, a tropical region with lush vegetation, rivers and mangroves and an e- nomic landscape dominated by fisheries, tourism and the challenges associated with fostering local economic development in the presence of low ICT penetration. Digital ecosystems (DEs) in some ways represent the next generation of ICT and Internet usage. Applicable to many contexts, they will perhaps have the greatest effect in enabling small and medium-sized enterprises (SMEs) to compete on the global stage.

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Collaboration Networks for Innovation and Socio-economic Development: European and Latin American Perspectives on Digital Ecosystems Research, Local Readiness, Deployment Strategies and Their Policy Implications.- Exploring the Role of Value Networks for Software Innovation.- Social Network Analysis of the Irish Biotech Industry: Implications for Digital Ecosystems.- Digital Ecosystem for Knowledge, Learning and Exchange: Exploring Socio-technical Concepts and Adoption.- The Diffusion of Social Media and Knowledge Management Towards an Integrative Typology.- Digital Ecosystems Adoption at Local Level: A Preliminary Comparative Analysis.- The Role of the Region in Knowledge Transfer for Economic Development.- Fostering Social Technologies Sharing through Open Knowledge Space: A Brazilian Case Study of Knowledge Network.- Analysing Collaboration in OPAALS' Wiki: A Comparative Study among Collaboration Networks.- Towards the Complex Interface.- Knowledge Resources A Knowledge Management Approach for Digital Ecosystems.- Launching Context-Aware Visualisations.- A Practical Approach to Identity on Digital Ecosystems Using Claim Verification and Trust.- Implementing a Trust Overlay Framework for Digital Ecosystems.- SPAM Detection Server Model Inspired by the Dionaea Muscipula Closure Mechanism: An Alternative Approach for Natural Computing Challenges.- Towards Autopoietic Computing.- Flypeer: A JXTA Implementation of DE Transactions.- A Research Framework for Interaction Computing.- Transformation Semigroups as Constructive Dynamical Spaces.- Numerical and Experimental Analysis of the p53-mdm2 Regulatory Pathway.- Lie Group Analysis of a p53-mdm2 ODE Model.