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Semantic Web

<a href="http://ad.doubleclick.net/adj/ttm.xml/art;tn=3;tw=300;th=55;to=h;tcs=0;tcp=0;ta=center;tva=bottom;tc=ffffff;tnm=3;te=1;sz=100x50;ord=123456789?" target="_blank"><img src="http://ad.doubleclick.net/adj/ttm.xml/art;tn=3;tw=300;th=55;to=h;tcs=0;tcp=0;ta=center;tva=bottom;tc=ffffff;tnm=3;te=1;sz=100x50;ord=123456789?" width="100" height="50" border="0" alt="" /></a> July 14, 2004 http://www.xml.com/pub/a/2004/07/14/onto.html

Ontology Tools Survey, Revisited

linked semantic web data

Hofstadter