Ariadne 41 carries an article from Ann Chapman on the implications of the impending changes to ISBN numbers for all users of ISBNs: publishers, distributors, booksellers, libraries, and suppliers of systems and software to the information community and the book trade. Richard Jones demonstrates how the Theses Alive Plugin for Institutional Repositories (Tapir) has provided E-Theses functionality for DSpace, and discusses the developmental methods for writing such third-party tools. Andy Powell gives an overview of VRVS, a collaborative tool which may have an effect on communications between project partners and Michael Day provides a report on the 4th International Web Archiving Workshop which took place alongside the ECDL 2004 Conference which has been covered by Jessie Hey and Angela Joyce.