Abstract
In recent years, we have witnessed a rapidly growing role of the Internet that has already formed a conceptual backbone of the society in the information era. What becomes apparent and highly visible is a broad range of services and their enormous diversity being seamlessly available to those surfing cyberspace. The ongoing developments not only have enabled a different way of doing business but also pushed toward ambient intelligence where the user fully interacts with his or her surrounding information environment. The three special issues bring together the ideas of CI to the network area in a systematic, coherent, and comprehensive fashion that will help us move one step closer to the realization of the vision of ambient intelligence.