The Semantic Web Research Group is a group of people working with Semantic Web technology inside the MIND LAB at University of Maryland Institute for Advanced Computer Studies
"Swoogle is a search engine for the Semantic Web on the Web. Swoogle crawl the World Wide Web for a special class of web documents called Semantic Web documents, which are written in RDF."
A. Ankolekar, M. Krötzsch, T. Tran, and D. Vrandecic. WWW '07: Proceedings of the 16th international conference on World Wide Web, page 825--834. New York, NY, USA, ACM Press, (2007)