XHTML (26 janvier 2000)

MathML (W3C)

SMIL: Synchronized Multimedia Integration Language (W3C)

XMI: Metadata Interchange Format (OMG)

XML/EDI: Electronic Data Interchange, Commerce électronique basé sur UN/EDIFACT

TIM: Telecom Interchange Markup (ATIS)

CML: Chemical Markup Language

ThML: Theological Markup Language