Public Bodies

• Antitrust Autority: "Francesco Saja" Library
• Autonomous Provinces:
  - Bolzano: Libraries
  - Trent: Bibliographical Catalogue
• Authority for the Supervision of Public Contracts: Library
• Bank of Italy: Library and Historical Archives
• Central State Archive: Library
• Chamber of Deputies: Library
• Civil Aviation Authority (ENAC): Library
  
• European Commission: Central Library
• Formez: Libraries
• ICE - Agency for the promotion abroad and the internationalization of Italian companies: Library
• INAIL - National Institute for Insurance against Accidents at Work: BibliOnWeb
• INEA - Italian Institute of Agricultural Economy: Library
• INPS - Italian Institute of Social Security: Central Library and Historical Archive
• INVALSI - Italian Institute for the rating of the educational system: Library
• ISFOL - Institute for the Development of Professional Training of Workers: Catalogue - Open Archive
• ISPRA - Institute for Protection and Environmental Research: Library
• ISS - Advanced Institute of Health: Library
• Istituto degli Innocenti of Florence: Library
• Italian Air Force: Library of the Historical Office
• Italian Army: Central Military Library
• Italian Government: Chigiana Library
• Italian Navy: Central Library
• Italian Radio & TV (RAI - Radiotelevisione Library
• Library "Marucelliana" of Florence
• Ministries:
  - Agriculture and Forestry Policies: Historical National Library of the Agriculture
  - Cultural Heritage and Activities: Public Libraries - National Archive System
  - Defence: Palazzo Cesi Library - CASD Library
  - Economy and Finance: Library "Luca Pacioli" of the State General Accounting Department - Library and documents office of the Treasury Department - Historical Library
  - Economic Development: Library Center
  - Education, University and Research: Libraries and Newspaper
  - Environment: Library
  - Foreign Affairs: Library and research office - Diplomatic Archives
  - Health: Library
  - Infrastructure and Transportation: Library Sector Infrastructure - Library of the Maritime Transport Sector - Library of the Land Transport Sector
  - Interior: Libraries
  - Justice: Central Law Library
  - Labour and Social Security: Library
• National Agency for Regional Health Services: Library
• National Agency for the Development of Education: National Pedagogical Library - Historical Archive
• National Central Library of Florence
• National Central Library of Rome
• National Council for Economics and Labour (CNEL): Library
• National Institute of Statistics (ISTAT): Library - Catalogue
• National Librarian Service (SBN)
• National Library "Vittorio Emanuele III" of Naples
• National Library of Potenza
• National School for Administration of the Interior Ministry (SSAI): Library
• National School of Administration (SNA): Libraries
• National School for Local Public Administration (SSPAL): Library
• National Union Catalog (ICCU)
• Regions:
  - Abruzzo: Benedetto Croce Library
  - Basilicata: Council Library
  - Calabria: Library System
  - Campania: Regional Library System - Council Library
  - Emilia-Romagna: Library of the Legislative Assembly
  - Friuli-Venezia Giulia: University and Region OPAC - bibliotechefvg
  - Lazio: Council Library - Libraries of the Region
  - Liguria: Catalogue of Ligurian Libraries
  - Lombardia: Council Library - Libraries
  - Marche: Catalogues of the Region
  - Molise: SBN Pole
  - Piedmont: Libraries
  - Puglia: Council Multimedia Library
  - Sardegna: SardegnaLibraries
  - Sicily: Libraries and Archives
  - Trentino-Alto Adige: Bibliographic Catalogue of Trentino - Autonomies and Linguistic Minorities Library
  - Tuscany: Library of the Regional Government - Council Library
  - Umbria: Libraries
  - Valle d'Aosta: Libraries
  - Veneto: Libraries
• Senate: "Giovanni Spadolini" Library
• State Audit Court: Library
• State Council: Library
• Unioncamere - Italian System of Chambers of Commerce: Library and Historical Archive

Research Bodies

• National Research Council:
  - Libraries
  - Central Library "G. Marconi" - Rome
  - IDAIC - Institute of International and Comparative Agricultural Law (Florence) - Opac
  - ISGI - Institute for International Legal Studies (Rome) - Libraries
  - ISSiRFA - Institute for the Study of Regionalism, Federalism and Self-Government "M.S. Giannini" (Rome) - Library
  - ITTIG - Institute of Legal Information Theory and Techniques (Florence) - Library

Private Bodies

• "Antigono Donati" Library of the INA Assitalia - Rome
• "Giovanni Ghirotti" Legal Economic Library - Cesena
• Library of the "Gaetano Morelli" Foundation - (International Law Library) - Crotone
• Lilith - Information Network on Women: Opac
• UNICRI - United Nations Interregional Crime and Justice Research Institute - Turin: Documentation and Information Centre
• UNIDROIT - International Institute for the Unification of Private Law - Rome: Library

Other Guides and Metaopac

• Cultural Institutes of Rome - Libraries
• Cultural Internet - Catalogues and digital collections of Italian libraries
• Digital Library of the Bologna University - Alm@ DL
• The European Library: portal of the national libraries of Europe
• European Libraries (by Politecnico of Turin)
• Government Public Libraries - Ministry of Cultural Heritage and Activities
• Internet catalogues (OPACs) and library websites directories (by AIB)
• Italian Alpine Club:National Library
• Italian Libraries (by Politecnico of Turin)
• Italian OPACs (by AIB)
• Italian Union Catalogue of Serials (ACNP) (by CIB - Bologna and CNR)
• Libraries for the Public Authority
• Libraries of the Region Committees (metaOpac)
• Libweb - Library Servers via WWW
• MAI - Italian Azalai MetaOPAC: global search | select search
• School Metaopac
• State Libraries - Ministry for Cultural Heritage and Activities
• URBE - Roman Union of the Ecclesiastic Libraries
• URBS - Roman Union of the Scientific Libraries
• Virtual Bibliographic Catalog of Lombard Universities (by Cilea)