Metadata Goes Mainstream
http://journals.syne.org/pub/index.php?journal=IJTC&page=article&op=view&path[]=42
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Brown, Fred
International Journal for Technical Communication
2007

Abstract:

Metadata from the world of librarians and database searching is moving to center stage in our everyday lives. And the metadata 'revolution' is coming to us through pictures--those cute, happy, funny shots of kids, parents, neighbors and workmates that we love to share and post on the internet.