The i3 group is an interdisciplinary research team at the Bruno Kessler Foundation (formerly, ITC) whose scientific focus is on technologies that facilitate human communication and human-computer interaction. We have a strong committment toward user-centred methodologies and we pursue a demo-or-die approach where technologies are used to carry out user studies and as proof of concepts. The background of the researchers in the group spans from computer science and engineering to experimental psychology and sociology.