[1]Armstrong,A,and Hagel III,J.The real value of on-line communities[J].Harvard Business Review,1996,74(3):134-141.

[2]Bughin,J,and Hagel III,J.The operational performance of virtual communities:Towards a successful business model[J].ElectronicMarkets,2000,10(4):237-243.

[3]Lee,F S L,Vogel,D,and Limayem,M.Virtual community informatics:What we know and what we need to know[R].Proceedings ofthe 35th Hawaii International Conference on System Sciences,2002.

[4]Gupta,S,and Kim,H W.Virtual community:Concepts,implications,and future research directions[R].Proceedings of the Tenth A-merica’s Conference on Information Systems,New York,2004.

[5]Schubert,P,and Ginsburg,M.Virtual communities of transaction:The role of personalization in electronic commerce[J].ElectronicMarkets,2000,10(1):45-55.

[6]Hagel,J.Net gains:Expanding markets through virtual communities[J].Journal of Interactive Marketing,1999,13(1):55-65.

[7]Williams,R L,and Cothrel J.Four smart ways to run online communities[J].Sloan Management Review,2000,9:81-91.

[8]Preece,J.Sociability and usability in online communities:Determining and measuring success[J].Behaviour&Information Technolo-gy,2001,20(5):347-356.

[9]Balasubramanian,S,and Mahajan,V.The economic leverage of the virtual community[J].International Journal of Electronic Com-merce.2001,5(3):103-138.

[10]Bagozzi,R P,and Dholakia,U M.Intentional social action in virtual communities[J].Journal of Interactive Marketing,2002,16(2):2-21.

[11]Koh,J,and Kim,Y G.Sense of virtual community:A conceptual framework and empirical validation[J].International Journal of Elec-tronic Commerce,2004,8(2):75-93.

[12]Plant,R.Online communities[J].Technology in Society,2004,26:51-65.

[13]Dholakia,U M,et al.A social influence model of consumer participation in network-and small-group-based virtual communities[J].International Journal of Research in Marketing,2004,21(3):241-263.

[14]Li,Honglei.Virtual community studies:A literature review,synthesis and research agenda[R].Proceedings of the America’s Confer-ence on Information Systems,New York,2004.

[15]Etzioni,A,and Etzioni,O.Face-to-face and computer-mediated communities:A comparative analysis[J].The Information Society,1999,15:241-248.