
Ontologías.
	http://swoogle.umbc.edu/
	http://www.acm.com/

Documento 
	Ontolingua http://www.ksl.stanford.edu/software/ontolingua/
	DAML http://www.daml.org/ontologies/
	www.unspsc.org
	www.rosettanet.org
	www.dmoz.org
