Nowadays the production of digital contents, data and services has reached a speed never experienced before. Large amounts of content are already on the Web, waiting for being reused both for personal or professional purposes. These contents, including multimedia documents, application tools, and services are being accumulated on the Web, in cloud systems, and in local and global data structures. There is thus a need for new theories and technologies for advanced information search, integration through interoperation, and personalization of digital services. Additionally, in science and technology, with progressively sophisticated research going on, there is a growing need for interdisciplinary availability, distribution and exchange of the latest research results, in organic forms, including not only research papers and multimedia documents, but also various tools developed for measurement, analysis, inference, design, planning, simulation, interaction and production as well as the related large data sets. And similar needs are also rising for the interdisciplinary and international availability, distribution and exchange of ideas and works among artists, musicians, designers, architects, directors, and producers.