In its third incarnation, the International Week on Management of Networks and Services 2007 (Manweek) will be host to five of the most reputable workshops and conferences in the area of management of networks and services. Collocating these events will allow for five days of intensive exchange of ideas between research communities and topics that are distinct but interrelated, allowing participants to forge links and exploit synergies with researchers of adjacent areas of interest. The general theme of this Manweek 2007 is "End-to-End Virtualization of Networks and Services", a topic that captures the imagination of industry and researchers alike. Each of the workshops, organized by their own technical program committees, will support this general theme.