Special issue on PODC 2007

This special issue of Distributed Computing is based on papers that originally appeared, in preliminary and abbreviated form, in theProceedings of the 26thAnnualACMSymposiumonPrinciples ofDistributedComputing (PODC2007), held in Portland, Oregon on 12–15 August 2007. The papers were chosen by the Program Committee from the 32 full-length papers presented at the Symposium, based on their quality and representation of the range of topics addressed in the Symposium. In addition to being reviewed, in preliminary form, by theProgramCommittee of PODC2007,