This book constitutes the proceedings of the 4th International Conference on Advances in Information Technology, IAIT 2010, held in Bangkok, Thailand in November 2010.The 22 revised full papers presented were carefully reviewed and selected from numerous submissions. The volume aims to provide a forum for researchers, educators, government officers, consultants, private sectors, managers, developers and others in the rapidly growing field of information technology to meet, discuss and exchange ideas on recent advances. The papers address current issues in the fields of e-service, information and communication technology, intelligent systems, information management, and platform technology.