1. Challenges and opportunities. Science 331(6018), 692–693 (2011)
2. Alkhateeb, F., AlMaghayreh, E., Aljawarneh, S., Muhsin, Z., Nsour, A.: E-learning Tools and Technologies in Education: A Perspective. E-learning (2010)
3. Alves da Silva, N., Morais da Costa, G., Prior, M., Rogerson, S.: The Evolution of E-learning Management Systems: An Ethical Approach. International Journal of Cyber Ethics in Education (IJCEE) 1(3), 12–24 (2011)
4. Anderson, P.: What is web 2.0. Ideas, technologies and implications for education 60 (2007)
5. Baker, R., Yacef, K.: The state of educational data mining in 2009: A review and future visions. Journal of Educational Data Mining 1(1), 3–17 (2009)