The International Journal of Web Information Systems focuses on the reality of the Global Information Infrastructure. Despite numerous applications across various domains such as e-business, e-commerce, e-learning, e-science, and e-government, and significant advancements made by engineers and scientists, the seamless development of Web information systems and services remains a major challenge. This journal explores the shared vision for the future, which emphasizes semantically-rich information and service-oriented architecture for global information systems. This vision converges with advancements in technologies such as XML, Web services, RDF, OWL, as well as multimedia, multimodal, and multilingual information retrieval, and distributed, mobile, and ubiquitous computing. While the journal covers a broad range of topics, it welcomes papers that provide insights into all aspects of Web information systems, including Web semantics and dynamics, Web mining and searching, Web databases and data integration, Web-based commerce and e-business, Web collaboration and distributed computing, Internet computing and networks, performance of Web applications, and Web multimedia services and education.