As of June 2012, Prof. Dr. Christian Bizer has moved to the University of Mannheim where he has been appointed W3-Professor for Information Systems and is now part of the Research Group Data and Web Science at the School of Business Informatics and Mathematics.
All research, open data and open source software projects, that were formerly hosted at Freie Universität Berlin, will be continued in Mannheim. See projects.
For detailed information about the group please refer to:
DBpedia - Querying Wikipedia like a database.
Linking Open Data - A Nucleus for the Web of Data.
D2R Server - Accessing Relational Databases as Virtual RDF Graphs.