References [1] T. O'Reilly, "What is Web2.0: Design patterns and business models for the next generation of software", Communications & Strategies 65 (1), pp. 17-37, 2007. [2] F.W. Zammetti, Practical Javascript, DOM Scripting, and Ajax Projects, Springer-Verlag, New York, NY, 2007. [3] W. Roush, "Killer maps", Technology Review, pp. 54-60, 2005. [4] J. Hwang, J. Altmann, and K. Kim, "The structural evolution of the Web2.0 service network", Online Information Review, 33 (6), pp. 1040-1057, 2009. [5] H. Eijkman, "Web2.0 as a non-foundational network-centric learning space", Campus-Wide Information Systems (25:2), pp. 93-104, 2008. [6] A.-L. Barabasi, H. Jeong, Z. Neda, E.Z. Ravasz, A. Schubert, and T. Vicsek, "Evolution of the social network of scientific collaborations", Physica A 311 (3-4), pp. 590-614, 2002. [7] M.E.J. Newman, "The structure of scientific collaboration networks", Proceedings of the National Academy of Sciences of the United States of America 98 (2) pp. 404-409, 2001. [8] D. Krackhardt, and R.N. Stern, "Informal networks and organizational crises: An experimental simulation", Social Psychology Quarterly 51 (2), pp. 123-140, 1988. [9] K. Kim, J. Altmann, and J. Hwang, "Measuring and analyzing the openness of the Web2.0 service network for improving the innovation capacity of the Web2.0 system through collective intelligence," In Proceedings of the COLLIN, Hagen, Germany, 2010. [10] J. Scott, Social Network Analysis: A Handbook, SAGE Publication Ltd, London, 1991. [11] S. Wasserman, and K. Faust, Social Network Analysis: Methods and Applications, Cambridge University Press, New York, NY, 1994. [12] A. Everard, and R. Henry, "A social network analysis of interlocked directorates in electronic commerce firms", Electronic Commerce Research and Applications 1, 2002, pp. 225-234. [13] J. Walter, C. Lechner, and F.W. Kellermanns, "Knowledge transfer between and within alliance partners: Private versus collective benefits of social capital", Journal of Business Research 60 (7), pp. 698-710, 2007. [14] E.J. Castilla, H. Hwang, E. Granovetter, and M. Granovetter, "Social networks in Silicon Valley", in The Silicon Valley Edge: A Habitat for Innovation and Entrepreneurship, Lee, C.-M., Miller, W.F., Hancock, M.G., and Rowen, H.S. (Eds.), Stanford University Press, California, pp. 218-247, 2000. [15] A.B. Hargadon, "Brokering knowledge: Linking learning and innovation", Research in Organizational Behavior 24, pp. 41-85, 2002. [16] R.S. Burt, "Structural holes and good ideas", American Journal of Sociology 110 (2), pp. 349-399, 2004. [17] R. Albert, H. Jeong, and A. Barabasi, "Diameter of the World-Wide Web", Nature 401, pp. 130-131, 1999. [18] M.E.J. Newman, "Clustering and preferential attachment in growing networks", Physical Review E, 64, pp. 025102-4, 2001. [19] D.J. Watts, and S.H. Strogatz, "Collective dynamics of 'Small-World' networks", Nature 393, pp. 440-442, 1998. [20] M.S. Granovetter, "The strength of weak ties", The American Journal of Sociology 78 (6), pp. 1360-1380, 1973. [21] M.O. Jackson, Social and Economic Networks, Princeton University Press, Princeton, 2008. [22] M. McPherson, L. Smith-Lovin, and J.M. Cook, "Birds of a feather: Homophily in social networks", Annual Review of Sociology 27, pp. 415-444, 2001. [23] L. Festinger, S. Schachter, and K. Back, Social Pressures in Informal Groups: A Study of Human Factors in Housing, Stanford University Press, Stanford, 1963. [24] H.R. Bernard, P.D. Killworth, M.J. Evans, C. McCarty, and C.A. Shalley, "Studying social relations cross-culturally", Ethnology 27 (2), 1988, pp. 155-179, 1988. [25] K. Kim, J. Altmann, and J. Hwang, "The impact of the subgroup structure on the evolution of networks," In Proceedings of the 2nd NetSciCom, SanDiego, USA, 2010. [26] M.E.J. Newman, "Assortative mixing in networks", Physical Review Letters 89 (20), pp. 208701, 2002. [27] R. Pastor-Satorras, A. Vazquez, and A. Vespignani, "Dynamical and correlation properties of the Internet", Physical Review Letters 87 (25), pp. 258701, 2001. [28] S. Valverde, and R.V. Sole, "Self-organization versus hierarchy in open source social networks", Physical Review E 76 (4), pp. 046118, 2007. [29] T. Muller-Prothmann, A. Siegberg, and I. Finke, "Inter-organizational knowledge community building: Sustaining or overcoming organizational boundaries?" Journal of Universal Knowledge Management 0 (1), pp. 39-49, 2005. [30] N.T. Korfiatis, M. Poulos, and G. Bokos, "Evaluating authoritative sources using social networks: an insight from Wikipedia", Online Information Review 30 (3), pp. 252-262, 2006. [31] C. McGarth, and D. Krackhardt, "Network conditions for organizational change", The Journal of Applied Behavioral Science 39 (3), pp. 324-336, 2003. [32] G. Reese, Cloud Application Architectures: Building Applications and Infrastructure in the Cloud, CA: O'Reilly Media, 2009.