The theme of this year's LIDA conference is evaluation. At the moment, when the conference is still going on, it is possible to say that the variety of papers on both qualitative and quantitative evaluation has been interesting. Many of the speakers including the keynotes by Blaise Cronin and Paul Wouters have put a specific emphasis on the issues of discussing the question of what evaluation is actually evaluating and what would be the most appropriate thing to evaluate from different stakeholder perspectives. Cronin posed a serious question on the significance of Beethoven (traditionally significant person) or Bieber (popular person on the social web right now) and the premises of doing measurements. Wouters did another useful excursion to the foundations of evaluation as an activity, its premises and consequences.