It is argued that we are experiencing a paradigm shift from a user perspective to a client perspective in library and information science. The paradigm shift is brought about by recent changes in scholarly publishing, which have enabled end-users to search for and retrieve information by themselves. Libraries are increasingly providing services that are more and more personalized. The implications of the paradigm shift for management, privacy policy, integration of services, and standards are discussed. It is suggested that libraries are increasingly considering customer relationship management and that privacy policy should be split up in to personal and professional privacy. Current systems should be developed to support successive searching behaviour. Finally the need for an Open Services Initiative to solve the appropriate service problem is discussed.