Transactions on Computational Collective Intelligence II. Transactions on Computational Collective Intelligence : Springer : 9783642171543 : 3642171540 : 16 Nov 2010 : Welcome to the second volume of Transactions on Computational Collective Intel- gence (TCCI), a new journal devoted to research in computer-based methods of c- putational collective intelligence (CCI) and their applications in a wide range of fields such as the Semantic Web, social networks and multi-agent systems. TCCI strives to cover new methodological, theoretical and practical aspects of CCI understood as the form of intelligence that emerges from the collaboration and competition of many individuals (artificial and/or natural). The application of multiple computational int- ligence technologies such as fuzzy systems, evolutionary computation, neural s- tems, consensus theory, etc. , aims to support human and other collective intelligence and to create new forms of CCI in natural and/or artificial systems. TCCI is a