Swoogle - a semantic search engine

Swoogle is one of the semantic search engine that have many issues related to insufficient data and advantages over the current search technique. Swoogle allow users to specify an arbitrary search string to find relevant semantic web documents. In stead of build a full-text index, Swoogle parses a semantic web document and only indexes the part contributing most of the semantics of the document, i.e., the document's URL, the terms being used and/or being defined by the document, explicit description about the the document, and the namespaces used by the document.
For further detail about swoogle semantic search engine visit: http://swoogle.umbc.edu