ACM EC 2010 accepted papers: M. Babaioff, R. Kleinberg and A. Slivkins, Truthful Mechanisms with Implicit Payment Computation G. Parker and M. Van Alstyne, Platforms for Controlling Downstream Innovation D. Fleder, K. Hosanagar and A.Buja, Recommender Systems and their Effects on Consumers: The Fragmentation Debate J. Feldman, V. Mirrokni, S. Muthukrishnan and M. M Pai, Auctions with Intermediaries S. Seuken, D. Charles, M. Chickering and S. Puri, Market Design and Analysis for a P2P Backup System J. Horton and L. Chilton, The Labor Economics of Paid Crowdsourcing L. Jian and R. Sami, Aggregation and Manipulation in Prediction Markets: Effects of Trading Mechanism and Information Distribution S. Das and M. Magdon-Ismail, Collective Wisdom: Information Growth in Wikis and Blogs T. Chakraborty, S. Judd, M. Kearns and J. Tan, A Behavioral Study of Bargaining in Social Networks M. Babaioff, L. Blumrosen and A. Roth, Auctions with Online Supply K. Iyer, R. Johari and C. Moallemi,...