In recent years, social and organizational aspects of agency have become - jor research topics in MAS. Current applications of MAS in Web services, grid computing and ubiquitous computing highlight the need for using these aspects in order to ensure social order within such environments. Openness, hete- geneity, and scalability of MAS, in turn, put new demands on traditional MAS interaction models and bring forward the need to investigate the environment wherein agents interact, more speci?cally to design di?erent ways of constra- ing or regulating agents¿ interactions. Consequently, the view of coordination and control has been expanding to entertain not only an agent-centric persp- tive but societal and organization-centric views as well. The overall problem of analyzing the social, legal, economic and technological dimensions of agent organizations and the co-evolution of agent interactions pose theoretically - manding and interdisciplinary research questions at di?erent levels of abstr- tion. The MAS research community has addressed these issues from di?erent perspectives that have gradually become more cohesive around the four c- cepts that give title to this workshop series: coordination, organization, ins- tutions and norms. The COIN@AAMAS 2007 and COIN@MALLOW 2007 events belong to a workshopseries that started in 2005, and since then has continued with two e- tions per year. The main goalof these workshopsis to bring together researchers from di?erent communities working in theoretical and/or practical aspects of coordination, organization, institutions and norms, and to to facilitate a more systematicdiscussionofthesethemesthathaveuntillatelybeenconsideredfrom di?erent perspectives.

Coordination.- Towards a Framework for Agent Coordination and Reorganization, AgentCoRe.- Ignoring, Forcing and Expecting Simultaneous Events in Electronic Institutions.- A Contract Model for Electronic Institutions.- Embedding Landmarks and Scenes in a Computational Model of Institutions.- Coordination and Sociability for Intelligent Virtual Agents.- The Examination of an Information-Based Approach to Trust.- A Dynamic Coordination Mechanism Using Adjustable Autonomy.- Organizations and Institutions.- Towards a Formalisation of Dynamic Electronic Institutions.- Large-Scale Organizational Computing Requires Unstratified Reflection and Strong Paraconsistency.- Using Case-Based Reasoning in Autonomic Electronic Institutions.- Semantical Concepts for a Formal Structural Dynamics of Situated Multiagent Systems.- Dynamic Composition of Electronic Institutions for Teamwork.- Organisational Artifacts and Agents for Open Multi-Agent Organisations: "Giving the Power Back to the Agents".- Knowledge Sharing Between Agents in a Transitioning Organization.- Norms.- Role Model Based Mechanism for Norm Emergence in Artificial Agent Societies.- Using Testimonies to Enforce the Behavior of Agents.- Implementing Norms That Govern Non-dialogical Actions.- A Normative Multi-Agent Systems Approach to the Use of Conviviality for Digital Cities.- On the Multimodal Logic of Normative Systems.- A Distributed Architecture for Norm Management in Multi-Agent Systems.- A Coherence Based Framework for Institutional Agents.- Distributed Norm Enforcement Via Ostracism.- Model Checking Norms and Sanctions in Institutions.