Answers
  - W3C = World Wide Web
    Consortium
 
  - More than 500 companies and institutions are W3C Members
 
  - Tim Berners-Lee
    
, inventor of the WWW including HTML,
    HTTP, and URIs, is the Director of the W3C since 1994. 
  - The W3C is on the Web at http://www.w3.org.
    (It is hosted by MIT, INRIA, and Keio University, with 10 Offices supporting
    outreach efforts.) 
  - W3C mainly produces specifications called Recommendations. Examples: (X)HTML, XML, CSS, RDF, XSLT, XML Schema,
    VoiceXML, XForms