This book constitutes the refereed proceedings of the 7th International Conference on Web-Age Information Management, WAIM 2006, held in Hong Kong, China in June 2006.The 50 revised full papers presented were carefully reviewed and selected from 290 submissions. The papers are organized in topical sections on, indexing, XML query processing, information retrieval, sensor networks and grid computing, peer-to-peer systems, Web services, Web searching, caching and moving objects, temporal database, clustering, clustering and classification, data mining, data stream processing, XML and semistructured data, data distribution and query processing, and advanced applications.