Countries of the world
The Oficina de Información Diplomática (Ministerio de Asuntos Exteriores) elaborates anually an index of the different countries relevant to Spain. The information contained in these files is based on objective data, without any kind of political positioning or subjective opinions. The information contained in this site is in Spanis.
http://www.mae.es/es/MenuPpal/Paises/

Leaders of the world
The Center for International Relations and International Cooperation (CIDOB) offers detailed biographies of world leaders. A better knowledge of these persons (their individual development, their personal background, their relationship with other actors) is useful to the visitor who seeks to understand present problems and past events, and to foresee the future international scenario.
http://www.cidob.org/bios/