Surf these sites: Broad System of Ordering (BSO) -- A modern machine-held classification system embracing all fields of knowledge, useful as an aid to subject searching on the Internet or on any large information system covering the whole span of knowledge. Four classification schemes -- Succinct histories and analyses of four major classification schemes: Library of Congress Classification (LCC), Dewey Decimal Classification (DDC), Universal Decimal Classification (UDC), and Colon Classification (CC). Lexical and Classification Resources -- "This page offers dictionaries, thesauri, classification schemes, and related matter primarily of use to those managing preservation libraries, imaging projects, etc."
Help build the largest human-edited
directory on the web.