The aim of this paper is to explore the 'curation' concept and his impact on the LIS professions and skills. The article analyze the difference between the 'digital curation' and the 'content curation' concepts. In the LIS field the 'digital curation' concept regards some specific professional practices and tecniques designed to manage the full lifecycle of the digital objects (research data, documents), in order to add value to them. The 'content curation' term is used in a broader contexts, and it is linked to the importance of a better online experience and a more organized and accurate management of the online contents. In the final section of the article: 'Who cure the curators?', we describe the tools and the curricula for both the 'digital curation' and the 'content curation'