XML UK: the United Kingdom Forum for Structured Information Standards
The organization provides a forum for XML and SGML users and developers to share their experiences and ideas concerning the use of XML, SGML and other related standards.
XML UK is the United Kingdom chapter of the International SGML/XML Users' Group (ISUG) (which is closing) and is a recognized Affiliate Group of the British Computer Society.
References
XML UK Wikipedia(Text) CC BY-SA