• Keimelion is a name of a project at the Ludwig Maximilian University of Munich Library which offers unrestricted electronic access to outstanding items from its treasury of rare books on the basis of its Open Access policy, governed by the principles of the "Budapest Open Access Initiative" and the "Berlin Declaration on Open Access to Knowledge in the Sciences and Humanities".
• Munich Digitization Center (German Das Münchener Digitalisierungszentrum (MDZ)) is an institution dedicated to digitization, Online publication and the long-term archival preservation of the holdings of the Bavarian State Library and other cultural heritage institutions. It was founded in 1997 under the leadership of Mark Brantl. It operates as a unit of the Bavarian State Library.

The Karlsruhe Virtual Catalog allows you to search simultaneously the holdings of many major libraries in Germany, Austria, Switzerland, France, Spain, and the UK; it functions then as a sort of European Union Catalog, and a counterpart to the mainly US/Canadian WorldCat database. Individual library catalogs may also be searched; their availability and coverage of older materials varies. In addition, KVK provides access to the German Union Catalog of Serials and to German book trade catalogs, including German Books in Print.