This volume contains the proceedings of the 7th International Working Conference on Active and Programmable Networks (IWAN 2005) that was held during November 21-23, 2005, in Sophia Antipolis, Cote d' Azur, France, jointly organized by Hitachi Europe and INRIA. IWAN 2005 took place against a backdrop of questions about the viability and - cessity of a conference that deals with an area perceived by many as having run its full course. The Organizing Committee, during the preparations of the conference, took these concerns seriously and reflected them in the theme of this year's event, entitled "Re-incarnating Active Networking Research," and expanding the scope of past calls for papers into topics that have emerged from active and programmable networks. The result was a success because we received 72 submissions, a number that - ceeded our expectations and in fact is one of the highest in the history of the conf- ence. The distinguished Technical Program Committee set high standards for the final program; each one of the submitted papers received three peer reviews with detailed comments and suggestions for the authors. In total, 13 papers were accepted for the main program sessions with 9 papers accepted unconditionally and the remaining 4 papers being conditionally accepted with shepherding by selected Program Committee members.

Research and development of autonomics have come a long way, and we are delighted to present the proceedings of the 3rd IEEE International Workshop on Modelling Autonomic Communications Environments (MACE 2008).Asin the last two years,this workshopwasheld aspart of Manweek,the International Week on Management of Networks and Services, which took place on the lovely Island of Samos in Greece. MACEstartedasanexperimentin2006,andcreatedasmallcommunitythat now?nds itselfattractedbackeachyearby afeeling ofexcitement-thatthere is something new going on. Certainly, MACE is not as shiny or practiced as other well-known conferences and workshops, but we consider this a feature of the workshopitself. New ideas,a little rougharoundthe edges(and sometimes more than a little), often quite un?nished, pop out and provoke extensive discussion. Scienceneeds this kindofexploratoryadventureandwe werestronglymotivated to preservethis atmosphereof explorationanddiscussionin this year'sprogram. ItisalsoveryinterestingtoobservethesupportofindustryforMACE,indicating that there is a need for new ideas outside the classical academic circles. This year, the submissions were more peripheral to the invited themes of the workshop than in the last two years. We saw prototypes emerging and expe- ments maturing that attempt to now employ the principles introduced in pre- ousyears.WecancallthispartofMACEthe"protoautonomics,"acknowledging that we still have some way to go, but that we are at the exciting beginning of the journey. The book you are holding in your hands presents the accepted papers of the technical sessions of MACE 2008. We had 22 submissions, of which 8 were - cepted as full papers. Furthermore,we allowedfour submissions as short papers.