- Matteo Baldoni, Cristina Baroglio, Jamal Bentahar, Guido Boella, Massimo Cossentino, Mehdi Dastani, Barbara Dunin-Keplicz, Giancarlo Fortino, Marie Pierre Gleizes, João Leite, Viviana Mascardi, Julian A. Padget, Juan Pavón, Axel Polleres, Amal El Fallah-Seghrouchni, Paolo Torroni, Rineke Verbrugge, editors, Proceedings of the Second Multi-Agent Logics, Languages, and Organisations Federated Workshops, Turin, Italy, September 7-10, 2009. Volume 494 of CEUR Workshop Proceedings, CEUR-WS.org, 2009.