This book constitutes the refereed proceedings of the 7th Information Agents, CIA 2002, held in Helsinki, Finland in August 2003. The 17 revised full papers and 6 revised short papers presented together with 2 invited papers were carefully reviewed and selected from 60 submissions. The papers are organized in topical sections on pervasive information service provision, information agents and peer-to-peer computing, trading and negotiation, information gathering and integration, collaborative search and filtering, collaboration in open environments, trust in agent-based information provision, and information agent systems engineering.