What Do Movable Type and XML Have in Common?
http://www.stc.org/intercom/PDFs/2008/200812_25-26.pdf
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O'Keefe, Sarah S.
Intercom
2008

Abstract:

Compares Gutenberg's invention of the movable type to the creation of XML. But where movable type changed the “economics of a mechanical process,” XML changed the “economics of content authoring, formatting, and customization.”