Cover -- CONTENTS -- EDITORIAL ADVISORY BOARD -- Guest editorial -- 8th International Bielefeld Conference, 7-9 February 2006, Bielefeld, Germany -- Re-defining the library -- Digital libraries of the future - and the role of libraries -- Strategic planning and customer intelligence in academic libraries -- e-Science and its implications for the library community -- Exploring the academic invisible web -- WSIS, IFLA, UNESCO and GATS: networking for libraries on an international level -- Impact measures for libraries and information services -- Publishing solutions for contemporary scholars: the library as innovator and partner -- Data for the future -- DINI institutional repository certification and beyond -- ProSeBiCA: development of new library services by means of conjoint analysis -- The KB e-Depot digital archiving policy -- Bielefeld Academic Search Engine (BASE) -- The Nereus international subject-based repository.