2Ravitz,J AN ISD Model for Building Online Communities:Furthering the Dialogue [A]. Proceedings of 1997 National Convention of the Association for Educational Communications and Technology[C].New Mexico,Albuquerque, 1997.14-18.
3Russell, M Online Learning Communities: Implications for Adult Learning [J].Adult Learning Technology, 1999, (2):28-31.
5Woods R & Ebersole, S Using Non-subject-matter-specific Discussion Boards to Build Connectedness in Online Learning [J].The American Journal of Distance Education,2003,(2):99-118.
6Chidambram, L and Bostrom, R P Group Development (1): A Review and Synthesis of Developmental Models[J]. Group decision and Negotiation, 1997, (6) :159-187.
7Haythronthwaite, C A Social Network Study of the Growth of Community among Distance Learners [J]. Information Research,1998, (1):24.
8Hiltz, S R. Collaborative Learning in Asynchronous Learning Networks: Building Learning Communities[A]. Proceedings of WebNet 98 World Conference of the WWW,lnternet, and Intranet[C].Florida,Orlando, 1998.8-8.
9Harmon,S W & Jones. M G An Analysis of Web-based Instruction[J]. Educational Media International, 2001, 38(4) : 271-280.
10Lally, V & Barrett, E. Building a Learning Community On-line:towards Socio-academic Interaction[J].Research Papers in Education,1999,14(2) : 147-163.
