2O'Reilly, T.What Is Web 2.0, Design Patterns and Business Models for the Next Generation of Software[DB/OL]. <http://www.oreillynet.comJpub/a/oreilly/tim/news/2005/09/30 /what-is-Web-20.html .>
3Centre for Learning & Performance Technologies Top 100 Tools for Learning 2008 [DB/OL] <http://www.c41pt.co.uk/recommended/top100.html,2008-07-14.>
4David Jennings. E-learning2.0,what ever that is[DB/OL]. <http://alchemi.co.uk/archives/ele/eleaming_20 wh.html,2005 -12-22.>
5Alan Hemy. Back To School: Edu 2.0 Brings the Classroom to the Web [DB/OL].<http://www.appscout.com/2007/08/back to school edu 20 _brings_t.php,2008-08-21 .>
7Mark van Harmelen. Personal Learning Environments [A]. Proceedings of the Sixth International Conference on Advanced Learning Technologies (ICALT'06) IEEE Computer Society[C]. 2006:815-816.
8Stephen Downes. Learning networks in practice [J].Emerging Technologies for Learning. 2007,(2): 19-27.
9Rajkumar Buyya, Chee Shin Yeo, Srikumar Venugopal. Market-Oriented Cloud Computing: Vision, Hype, and Reality for Delivering IT Services as Computing Utilities[C]. Proceedings of the 10th IEEE International Conference on High Performance Computing and Communications, HPCC 2008: 5-13.