3. Metadata It is data about data. It is information about information.
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9. Folksonomies This term is attributed to Information Architect Thomas Vander Wal. It is the combination of two words. Folk: Of, occurring in, or originating among the common people: folk culture. Taxonomy: A division into ordered groups or categories.
13. Dewey, 200: Religion 210 Natural theology 220 Bible 230 Christian theology 240 Christian moral & devotional theology 250 Christian orders & local church 260 Christian social theology 270 Christian church history 280 Christian sects & denominations 290 Other religions Dewey Decimal Religions of the World
14. Library of Congress World History D: History (general) DA: Great Britain DB: Austria DC: France DD: Germany DE: Mediterranean DF: Greece DG: Italy DH: Low Countries DJ: Netherlands DK: Former Soviet Union DL: Scandinavia DP: Iberian Peninsula DQ: Switzerland DR: Balkan Peninsula DS: Asia DT: Africa DU: Oceania DX: Gypsies