The Internet is connecting an increasing number of individuals, organizations, and devices into global networks of information flows. It is accelerating the dynamics of innovation in the digital economy, affecting the nature and intensity of competition, and enabling private companies, government, and the non-profit sector to develop new business models. In this new ecosystem many of the theoretical assumptions and historical observations upon which economics rests are altered and need critical reassessment. This Handbook brings together twenty-six original chapters that discuss theoretical and applied frameworks for the study of the economics of the Internet, encompassing: Interdisciplinary in its approach, the Handbook synthesizes the state of knowledge and offers new perspectives for researchers, practitioners, and students. S. Aggarwal, C. Antonelli, H. Asghari, J.M. Bauer, S. Bauer, Y. Benkler, S.M. Besen, I. Brown, E. Castronova, D.D. Clark, C. Corrado, C. Feijóo, D.L. Garcia, J.-L. Gómez-Barroso, C. Handke, J. Haucap, K. Hollnbuchner, N. Just, G. Knieps, I. Knowles, J.J. Kranz, L. Küng, M. Latzer, W.H. Lehr, Y.-L. Liu, W. Ma, P. Mazepa, V. Mosco, N. Newman, E.M. Noam, P.P. Patrucco, R.G. Picard, A. Picot, G. Sadowsky, F. Saurwein, V. Schneider, S.J. Schultze, R. Sherman, P. Stepan, T. Stühmeier, R. Towse, B. Van Ark, M. Van Eeten, B. Van Schewick, H.R. Varian, D. Waterman, R.S. Whitt, S.S. Wildman, S. Wunsch-Vincent