welcome to gnowsis, the Semantic Desktop environment published by the Knowledge Management Lab of the DFKI. Gnowsis is a reference implementation of parts of the Nepomuk Semantic Desktop framework.
B. Schandl. Proceedings of the Semantic Desktop and Social Semantic Collaboration Workshop (SemDesk 2006) located at the 5th International Semantic Web Conference ISWC 2005 6th November 2006, Athens, GA, USA, volume 202 of CEUR Workshop Proceedings ISSN 1613-0073, CEUR-WS, (2006)