Opening Plenary - Yves Poppe, John Boland, François Fluckiger, Kevin Ryan, Lawrence Lessig 1a. Knowledge-sharing Middleware - Miroslav Milinovic, Peter Gietz, Ruth Cobos Pérez 1b. Updates on ISOC, IETF, ICANN and EC - Karel Vietsch, Brian Carpenter, Harald Alvestrand, Roman Tirler 1c. Security - Shirley Wood, Wolfgang Schneider, Andrew Cormack The Technology Plenary - François Fluckiger, Brian Carpenter, Fred Baker 2a. Middleware: PKI - Michael Gettes, Antonio Skarmeta, Eduardo Jacob, Peter Alterman 2b. Multimedia Architecture - Shirley Wood, Michael Fromme, Thomas Schmidt 2c. End-to-End - Jean-Paul le Guigner 3a. Middleware: AAA - Michael Gettes, Sassa Otenko, Alan Robiette, Bob Morgan 3b. Network Management - Kevin Meynell, Daniel Karrenberg, Jean-François Scariot, Igor Velimirovic 3c. Network Technologies: Network Advances - Mauro Campanella, Lada Altmanová and Stanislav Šíma, Jean-Marc Uzé 4a. Middleware: Directories - Michael Gettes, Roland Hedberg, Ken Klingenstein, Keith Hazelton 4b. Multimedia: User Platforms - Valentino Cavalli, Gregory Denis, Eva Hladká, Petr Holub, Maja Matijasevic 4c. Network Services: Network-oriented Services - Jean-Paul le Guigner, Victor Reijs, Afrodite Sevasti, Andrew Scott The Grid Plenary - Geerd-Rütiger Hoffman, Ian Foster, Tony Hey 5a. DataGRID - François Fluckiger, Antonia Ghiselli, Roberto Barbera 5b. TERENA Activities - Claudio Allocchio, Steven van den Berghe, Egon Verharen, Bert van Pinxteren, David Williams 6a. Grid Resources - Roman Tirler, John Crowcroft, Cees de Laat 6b. Recent Results Part 1 - Rina Samani, David Shotton, Ingrid Melve, Cezary Mazurek, Antonio Costa 7a. Grid Projects - Geerd-Rütiger Hoffman, Dietmar Erwin, Claus-Jürgen Lenz, Hans-Christian Hoppe 7b. Recent Results Part 2 - Rina Samani, Ted Hanss, Alan Smeaton, Saverio Niccolini, Ludek Matyska 8a. Advances in Information Retrieval - Miroslav Milinovic, Makx Dekkers, David Becket, Charles McCatheNevile 8b. P2P: Leveraging Distributed Computing and Collaboration - Jean-Paul le Guigner, Ana Preston, Andrew Herbert 8c. Research Networks - Mike Norris, Dai Davies, Guy Almes Closing Plenary - David Williams, John Naughton, Shirley Wood