1st Workshop on Large-Scale Distributed Systems for Information Retrieval July 27, 2007 In conjunction with ACM SIGIR 2007, Amsterdam, The Netherlands Organizers: Flavio Junqueira -Yahoo! Research Barcelona Vassilis Plachouras -Yahoo! Research Barcelona Fabrizio Silvestri - ISTI-CNR Ivana Podnar Zarko -FER University of Zagreb LSDS-IR LSDS-IR