Context Sensitive XHTML This paper tries to introduce some new elements into the HTML language. The purpose of these elements is to create documents that can contain different pieces of information at the same time. These various pieces of information can be presented to the use http://www.cg.tuwien.ac.at/~scheich/XHTMLPaper/overview.html
XHTML: Where XML and HTML meet Discussion of XHTML 1.0 and how it improves on the HTML 4.0 standard. Examines the issues involved in the transition between HTML and XHTML. Also explores backwards compatibility to HTML and XHTML modularization. http://www.webreference.com/xml/column6/