El Servicio de Obtención de documentos en las bibliotecas virtuales: Nuevas oportunidades en la gestión de Documentos=Conocimiento.

Virtual libraries are great managers of the knowledge. Document Delivery Services (DDS) facilitate the access to a part of the “explicit knowledge”. The electronic application of the new information´s technologies, formats and the consortial purchases of the collections, give new opportunities for their development. Recent, national and international Literature is reviewed to analyze the impact of the Virtual Libraries in the transformation of the DDS. The conclusion is that a redefinition of DDS is taking place, as part of the rationalization of collection development, the acquisition of electronic publications and retrospective digitalization