Webum > Computers > Data Formats > Markup Languages > XML Consultants News and Media People Resources Tools Vendors Addressing and Querying Applications Document Types Encoding Forms Linking Namespaces Programming References and Standards RSS@ Style Sheets Validation XSL@ See also Computers > Data Formats > Markup Languages > SGML Reference > Libraries > Library and Information Science > Technical Services > Cataloguing > Metadata Extensible Markup Language (XML) Main page for World Wide Web Consortium (W3C) XML activity and information. Silicon Beach Online XML Training Course Training course for UK residents having knowledge of HTML and style sheets. XML Activity Statement An executive overview of W3C's current and historical work on the Extensible Markup Language (XML). Help build the biggest human edited directory on the internet Add your website - Open Directory Project - Become an editor