The management of a modern research library comprises a wide array of challenging aspects. Our present issue contains four papers: each of them treating a different one of these aspects: how to balance the budget in times of rising costs and shrinking funds, how to assure a comprehensive access to scholarly information, how to realize for the future an effective preservation of our digital resources, and how to react to the challenges of library performance evaluations in our information society.

With respect to the budget, our first article describes a case study of the application to the library of TDABC (Time Driven Activity Based Costing system, a methodology that was introduced in industrial processes). In this study the method was applied to the cost of various cataloguing processes.

The second paper, in relation to the (affordable) accessibility of scientific output, comes from the MedOAnet and it describes the copyright policies and Open Access friendliness of publishers in the Mediterranean region. Some proposals are formulated to further improve the situation.

The next paper discusses the guidelines for preservation planning, published by a working group from nestor, the German competence network for digital preservation. It contains an interesting overview, especially since the original guidelines are up to now only available in German.

The last paper offers a meta-evaluation of different library evaluation models in Portugal, and it especially considers how these models are influenced by the transitions in our Information Society. An important paper for everybody involved in the application of quality measurement.