12.1. Authors' Addresses

   Tim Berners-Lee
   Director, W3 Consortium
   MIT Laboratory for Computer Science
   545 Technology Square
   Cambridge, MA 02139, U.S.A.

   Phone: +1 (617) 253 9670
   Fax: +1 (617) 258 8682
   EMail: timbl@w3.org

   Daniel W. Connolly
   Research Technical Staff, W3 Consortium
   MIT Laboratory for Computer Science
   545 Technology Square
   Cambridge, MA 02139, U.S.A.

   Phone: +1 (617) 258 8682
   EMail: connolly@w3.org
   URI: http://www.w3.org/hypertext/WWW/People/Connolly/