Dave Raggett is a computer specialist who has played a major role in implementing the World Wide Web since 1992.He has been a W3C Fellow at the World Wide Web Consortium since 1995 and worked on many of the key web protocols, including HTTP, HTML, XHTML, MathML, XForms, and VoiceXML.Raggett also wrote HTML Tidy. He lives in the west of England.Since late 2008, Raggett has been sponsored by JustSystems to work on the Semantic Web and XBRL (eXtensible Business Reporting Language).