1. Al-Khalifa, H. S., & Davis, H. C. (2007). Replacing the monolithic LOM: A folksonomic approach. In IEEE international conference on advanced learning technologies (ICALT 2007), (pp. 665–669).
2. Anderson, P. (2007). What is Web2.0? Ideas, technologies and implications for education. JISC Technology and Standards Watch. .
3. A taxonomy for learning, teaching and assessing: A revision of bloom’s taxonomy of educational objectives;Anderson,2001
4. Bateman, C., Brooks, G., McCalla, T., & Brusilovsky, P. (2007). Applying collaborative tagging to e-learning. Proceedings of ACM WWW. .
5. Bi, B., Shang, L., & Kao, B. (2009). Collaborative resource discovery in social tagging systems. In: 18th ACM Conference on Information and Knowledge Management. Hong-Kong, China, 2–6 November.