1. Alpert, J. and Hajaj, N. (2008), We Knew the Web was Big, available at: http://googleblog.blogspot.com/2008/07/we-knew-Web-was-big.html (accessed 18 December 2014).
2. Anderson, P. (2007), “What is Web 2.0? Ideas, technologies and implications for education”, research report, JISC Technology and Standard Watch, available at: http://21stcenturywalton.pbworks.com/f/What+is+Web+2.0.pdf (accessed 18 December 2014).
3. Bakshi, K. and Karger, D.R. (2005), “End-user application development for the Semantic Web”, ISWC Workshop on the Semantic Desktop – Next Generation Information Management and Collaboration Infrastructure, Galway, 6 November, pp. 123-137.
4. Benjamins, R., Contreras, J., Corcho, O. and Gómez-Pérez, A. (2002), “Six challenges for the Semantic Web”, Intelligent Software Components, Intelligent Software for the Networked Economy, April, available at: http://oa.upm.es/5668/1/Workshop06.KRR2002.pdf (accessed 18 December 2014).
5. Bergman, M. (2001), “The deep web: surfacing hidden value”, The Journal of Electronic Publishing, Vol. 7 No. 1, available at: http://quod.lib.umich.edu/cgi/t/text/text-idx?c=jep;view=text;rgn=main;idno=3336451.0007.104 (accessed 18 December 2014).