Theseus Program is a research program initiated in 2006 by the Federal Ministry for Education and Research (Germany) with the goal of developing a new Internet-based infrastructure in order to better use and utilize the knowledge available on the Internet. To this end, application-oriented basic technologies and technical standards are to be developed and tested under the umbrella of Theseus Program. The expected results are novel products, tools, services, and business models for the World Wide Web, as well as for the service and knowledge society of tomorrow.