This piece is based on two talks I gave in the spring of 2005 -- one at the O'Reilly ETech conference in March, entitled "Ontology Is Overrated", and one at the IMCExpo in April entitled "Folksonomies & Tags: The rise of user-developed classification." Th
C. Au Yeung, N. Gibbins, und N. Shadbolt. Proceedings of the 20th ACM conference on Hypertext and hypermedia
(HT2009), Seite 251--260. New York, NY, USA, ACM, (2009)