1. Grid Computing, http://www.ogf.org/
2. Active XML (AXML) Systems, http://www.activexml.net
3. Yahoo Groups, http://groups.yahoo.com/
4. Khambatti, M., Ryu, K., Dasgupta, P.: Peer-to-Peer Communities: Formation and Discovery. In: PDCS. Proceedings of the 14th IASTED Intl. Conf. Parallel and Distributed Computing Systems, pp. 161–166 (2002)
5. Crespo, A., Garcia-Molina, H.: Semantic Overlay Networks for P2P Systems. Technical report, Stanford University, USA (2002)