This book constitutes the refereed proceedings of the Second International Workshop on Quality of Future Internet Services, QofIS 2001, organized by the European COST Action 263, in Coimbra, Portugal, in September 2001. The 22 revised full papers presented were carefully selected during a competitive reviewing process from a total of 87 submissions. The book offers topical sections on quality of service for multimedia communication, admission control, QoS routing, differentiated services networks, QoS monitoring and mapping, and traffic engineering.

This work constitutes the refereed proceedings of the Third International COST264 Workshop on Networked Group Communication, NGC 2001, held in London, UK, in November 2001. The 14 revised full papers presented were carefully reviewed and selected from 40 submissions. All current issues in the area are addressed. The papers are organized in topical sections on application-level aspects, group management, performance topics, security and topology.