You don’t need to apologize for calling it Web 3.0. Of course the Web does not upgrade in one go like a company switching to Vista. But there is a definite phase transition from current technologies. My personal Web 3.0 definition is “the combination of Web 2.0 mass collaboration with structured databases”.
A. Schenker, H. Bunke, M. Last, and A. Kandel. Document Analysis Systems, volume 3163 of Lecture Notes in Computer Science, page 401-412. Springer, (2004)
S. Staab, J. Angele, S. Decker, A. Hotho, A. Maedche, H. Schnurr, R. Studer, and Y. Sure. AAAI 2000/IAAI 2000 - Proceedings of the 17th National Conference on Artificial Intelligence and 12th Innovative Applications of Artificial Intelligence Conference, Austin/TX, USA, July 30-August 3, 2000, AAAI Press/MIT Press, (2000)
B. Berendt, A. Hotho, and G. Stumme. Web Semantics: Science, Services and Agents on the World Wide Web, 8 (2-3):
95 - 96(2010)Bridging the Gap--Data Mining and Social Network Analysis for Integrating Semantic Web and Web 2.0; The Future of Knowledge Dissemination: The Elsevier Grand Challenge for the Life Sciences.
R. Studer, G. Stumme, S. Handschuh, A. Hotho, and B. Motik. New Trends in Knowledge Processing - Data Mining, Semantic Web and Computational Science. Proc. 6th Sanken International Symposium, page 31-34. Osaka, Japan, (March 2003)March 10-11, 2003.
J. Teevan, S. Dumais, D. Liebling, and R. Hughes. UIST '09: Proceedings of the 22nd annual ACM symposium on User interface software and technology, page 237--246. New York, NY, USA, ACM, (2009)