- Social tagging and the Semantic Web
- Proceedings of the 8th Extended Semantic Web Conference ESWC 2011, Heraklion, Crete, (May 2011)
- (May 2007)US Patent 7,222,333 .
- (2005)
- (2006)
- D-Lib Magazine (2006)
- Wired (2005)
- Library Review (in press)
- Spectrum, IEEE 43(2):80--80 (2006)


user