9Hersberger JA, Murray AL and Rioux KS. Examining information exchange and virtual communities. An emergent framework[J]. Online Information Review, 2007(31).
10Kavanaugh, A., J.M. Carroll, M.B. Rosson, T.T. Zin and D.D. Reese. Community Networks. Where Offline Communities Meet Online' [J], Journal of Computer-mediated Communication, 2009(10).