The fourth edition of the Italian Conference on Free Software (confSL) took place in Cagliari (Sardinia) this year. Bringing together University and LUGs, from one side, and Public Administration and young and dynamic small enterprises, from another, confSL is always an important appointment for Free Software movement, useful for understanding how market, law and economy evolve, making the point about work in progress and sharing information and news.

Rich, as usual, the program of workshops and seminars, ranging over technical and cultural aspects and including law, case studies, research and development projects. Among the technical seminars, we mention the one by FlossLab, presenting its application suite for Public Administration, the portal platform JAPS, Drush, a software for creating Drupal-based distributions, Notredam, a platform for Digital Asset Management and KLone, a framework for developing super fast and scalable web applications in C/C++. An article on VDD in conference proceedings has been presented by Binario Etico. It received very good feedback, especially from a technical point of view, and useful suggestions for making VDD an actually productive system. It seems this is the hot issue now!