"Visioning and Engineering the Knowledge Society - A Web Science Perspective" is a comprehensive collection of contributions presented at the second World Summit on the Knowledge Society (WSKS 2009). This series, edited by Miltiadis D. Lytras and a team of experts, offers an interdisciplinary approach to discussing the challenges and opportunities presented by the knowledge society. The summit, held in Chania, Crete, brought together leading figures from academia, industry, and politics to discuss the impact of information technology and the development of a knowledge-based society. In light of the multidimensional crises of recent years, this book emphasizes the need for new strategies and policies for a human-centered development process. The contributions promote the exchange of ideas and research findings relevant to international research agendas and provide valuable insights into shaping a sustainable future.