The mission of the INF is to promote the dissemination of Nanotribology research results, via meetings and other mechanisms, such as this website. While all three meetings mentioned above were characterized by discussions of the frontiers of research in nanotribology, and this is the spirit in which the INF wishes to continue, a secondary aim of the INF is to make efforts to involve participants from developing nations. This is a reason for our choice of atypical locations for the meetings, which, thanks to their reasonable accommodation rates, enable attendance by those who normally cannot afford to attend such meetings. It is also envisioned that a significant number of studentships will be available for each meeting.