The Multi-Agent Logics, Languages, and Organisations Federated Workshops (MALLOW for short), in its second edition this year after the success of MALLOW’007 held in Durham (UK), is a forum for researchers interested in sharing their experiences in agents and multi-agent systems. MALLOW’009 was held at the Educatorio della Provvidenza, in Torino (Italy), from September 7th, 2009 through September 10th, 2009. In particular, this edition includes the workshops: – Agents, Web Services and Ontologies, Integrated Methodologies (MALLOW-AWESOME’009); – Coordination, Organization, Institutions and Norms in Agent Systems & On-line Communities (COIN@MALLOW’009); – Formal Approaches to Multi-Agent Systems (FAMAS’09); – LAnguages, methodologies and Development tools for multi-agent systemS (LADS’009); – Multi-Agent Systems and Simulation (MAS&S’09). Besides Dov Gabbay, the organizers were very honored to have also Fabio Bellifemine, Alexis Tsoukias, and Franco Zambonelli as invited speakers. Following the tradition of the previous edition, MALLOW’009 was part of Agents’009 that includes also EASSS’09, the eleventh edition of the European Agent Systems Summer School. This volume contains the proceedings of the five workshops, for a total of forty-seven high quality papers, which were selected by the programme committees of the workshops for presentation. The volume is organized as follows. Besides this overall presentation, each workshop has an introductory essay, authored by the organizers, which presents the workshop, lists the programme committee members and additional reviewers, the accepted papers with their authors, and the workshop sponsors. It is followed by the workshop papers. The table of contents of this volume reports, for each workshop, the page number of its introductory essay and the first page of the workshop papers. We would like to thank all authors for their contributions, the members of the Steering Committee for the precious suggestions and support, and the members of the Programme Committees and the additional reviewers for the excellent work during the reviewing phase, the sponsors, the head of the Educatorio della Provvidenza, and all the persons who helped the organization of this event.