Talk:EXtensible Markup Language
[CM: Extensible Markup Language (XML) is a simple, very flexible text format derived from SGML (ISO 8879). Originally designed to meet the challenges of large-scale electronic publishing, XML is also playing an increasingly important role in the exchange of a wide variety of data on the Web and elsewhere. (W3C)]
--Anneke Goossen 05:59, 28 February 2012 (EST)
Extensible Markup Language. A WC3 standard, it is the universal format for structured documents and data on the web.
Source: HL Glossary 
Do we need to add this definition as a Reference definition?