The creation and improvement of the Online Contents Contemporary History database was supported by the Deutsche Forschungsgemeinschaft within the framework of the Clio-online network and the Internet portal Zeitgeschichte-online until 2008. The further development of the database is co-ordinated by the Staatsbibliothek zu Berlin - Preußischer Kulturbesitz (SBB-PK) in cooperation with the Research Centre for Contemporary History in Potsdam, the Lower Saxon State and University Library Göttingen, the German central subject library for Anglo-American history, the Bayerische Staatsbibliothek (BSB; Bavarian State Library), the German central subject library for General History; History of Germany, Austria, Switzerland, France and Italy, East-European History, the Bibliothek für Zeitgeschichte in der Württembergischen Landesbibliothek Stuttgart as special library for the contemporary history and the library of the Stiftung Topographie des Terrors (Foundation Topography of Terror Berlin).

The database OLC History is a subject-oriented selection of bibliographic data from the Online Contents database which is supplemented weekly by additional data provided by a number of German libraries. The creation and improvement of the Online Contents History database is currently supported by the Deutsche Forschungsgemeinschaft within the framework of the Clio-online network. The development of the database is coordinated by the Staatsbibliothek zu Berlin - Preußischer Kulturbesitz (SBB-PK) in cooperation with the Bayerische Staatsbibliothek (BSB; Bavarian State Library) Munich, the German central subject library for General History; Prehistory and Early History; Ancient history; History of Germany, Austria, Switzerland, France and Italy, East-European History. The database, which is updated weekly, contains the contents of about 1,100 journals, usually beginning with articles published in 1993.

The database OLC Ibero-America, Spain and Portugal is a regional related section from the Online Contents database that is constantly being completed with the addition of selected journals from the competent Libraries, the Library of the Ibero-American Institute Prussian Cultural Heritage (Ibero-America and the Caribbean) and the state and university library SUB Hamburg (Spain and Portugal). Currently more than 1.400 journals are being indexed. Gradually earlier editions of these journals will also be made accessible.

Online Contents Law is a subject-based selection of bibliographic data from the database Online Contents. The improvement of the Online Contents Law database is supported by the Deutsche Forschungsgemeinschaft (German Research Foundation) - from 2006 - within Internet portal Virtuelle Fachbibliothek Recht (Virtual Library Law). The further development of the database is coordinated by the Sondersammelgebiet Rechtswissenschaft (Special Collection Law) of the Staatsbibliothek zu Berlin - Preußischer Kulturbesitz (Berlin State Library - Prussian Cultural Heritage). 88 journals cover the ibero-american law and are part of the Online Contents - SSG Ibero-America.

The Online Contents service of the Special Subject Collection Political Science and Peace Research is part of the Online Contents database. It offers access to tables of contents of more than 870 journals relevant for study and research. New journals were added until December 2013 by the Special Subject Collection. Thus the database contains approximately 1.478,600 records of journal articles and reviews.

OLC Psychology is a subject oriented selection of bibliographic data from the Online Contents database. This database is regularly enhanced by table of contents data from additional periodicals out of the special collections of the Saarland University and State Library (SULB) Saarbrücken, the central subject library for Psychology in Germany. Currently 878 journals are being indexed back to the year of publication in 1993.

The OSF Preprints search combines records from various preprint repositories, including arXiv, bioRxiv, Cogprints, PeerJ, PsyArXiv, RePEc and SocArXiv.

Oxford Bibliographies in International Law offers exclusive, authoritative research guides that combine the best features of an annotated bibliography and a high-level encyclopedia. The database provides a comprehensive introduction to the essential body of literature that has shaped scholarly thought. It provides expert recommendations on the works available in International Law whether it be a chapter, a book, a journal article, a Website, blog, or data set. The entries provide a critical reflection on the literature and define the concepts necessary for legal aspects of international problems. The module “International Law” comprises e.g. the following main subjects: “History of International Law”, “Human Rights”, “International Economic Law”, “International Environmental Law”, “International Humanitarian Law”, “Sources, Foundations, and Principles of International Law”, “Specific Nations and Regions”, “Territory and Sea Law”, “Theory of International Law”. RSS alerts notify you when articles and bibliographies are updated.

Developed cooperatively with scholars and librarians worldwide, Oxford Bibliographies offers exclusive, authoritative research guides across a variety of subject areas. Combining the best features of an annotated bibliography and a high-level encyclopedia, this cutting-edge resource directs researchers to the best available scholarship across a wide variety of subjects.

Oxford Constitutions of the World (OCW) contains fully-translated English-language versions of all the world's constitutions (both national and sub-national), accompanied by individual jurisdictional commentaries, and supplementary materials, including foundation documents, historical versions of constitutions, and amendment Acts/Laws. The Max Planck Encyclopedia of Comparative Constitutional Law (MPECCOL) is a comprehensive online resource containing analytical comparative articles offering a global overview of constitutional law. Subscribers also benefit from access to the Oxford Law Citator, one of the most powerful tools available for legal research, enabling onward research and ease of access to key materials.

OEEUL articles define, explain, and analyze EU law’s key legal concepts.

Oxford Handbooks Online is a collection of handbooks in 17 subject areas, bringing together the world's leading scholars to write review essays that evaluate the current thinking on a field or topic, and make an original argument about the future direction of the debate. For the first time, all Handbooks are available online as well is in print across the subject areas. Monthly updates introduce articles in advance of print publication and beyond the book, online-only content ensures the most current, authoritative coverage anywhere.

Oxford International Organizations (OXIO) provides materials on the law of international organizations (NGOs are excluded) and enables comparative research across a wide range of organizations. It shows how international organizations have contributed to the development of international law. It collects and analyses primary materials on international organizations, ranging from their constituent instruments, resolutions, agreements with host states, to national and international court decisions and states' declarations and policy statements. The resource includes materials on lesser-known and regional organizations as well as well-known ones such as the UN, WHO, IMF, and World Bank.

The Oxford Legal Research Library provides access to leading works relevant to "International Commercial Arbitration" as well as "International Commercial Law" and "Private International Law". A title list can be found at https://olrl.ouplaw.com/page/476/ (the product "Financial and Banking Law" is not licensed).

Oxford Reports on International Law is intended to be a single point of reference for all international law jurisprudence, providing researchers access to the widest possible range of international law jurisprudence. Following modules are available: Oxford Reports on * International Law in Domestic Courts * International Courts of General Jurisdiction * International Human Rights Law * International Criminal Law * International Investment Claims *International Trade Law *International Law in EU Courts.

Oxford Research Encyclopedia of Criminology and Criminal Justice provides peer-reviewed overviews written by experts. All essays will be based on the latest, most impactful research and are written by active and well-respected scholars within the discipline.

Oxford Scholarly Authorities on International Law (OSAIL) contains over 180 full-text online editions of market-leading reference works and treatises published by Oxford University Press, including Oppenheim, and the Oxford Commentaries on International Law.

Including Oxford Scholarship Online (OSO), the University Press Scholarship Online (UPSO) publishes new books every month from an ever-growing roster of contributing presses, each adding to the variety of subjects covered on the platform. The MPG purchased the volumes 2003-2013/2014 of 16 OSO subject collections. This selection is continuously extended by single e-book acquisitions by MPG libraries.

The archive contains printed papers and stenographical reports of the German Bundestag since the 1st legislative period. Research is possible by number of document or thematical. In diesem elektronischen Archiv können sämtliche Drucksachen und Stenografischen Berichte des Deutschen Bundestages ab der 1. Wahlperiode recherchiert und im pdf-Format abgerufen werden. Die Dokumente sind mit ihrer jeweiligen Nummer (falls bekannt) oder mit inhaltlichen Suchbegriffen recherchierbar. Das Suchergebnis kann nachträglich z.B. durch Auswahl einer Wahlperiode, eines Drucksachentyps oder eines Urhebers weiter eingegrenzt werden.

Periodicals Archive Online is a major archive that makes the backfiles of scholarly periodicals in the arts, humanities and social sciences available electronically, providing access to the searchable full text of hundreds of titles. The database spans more than two centuries of content, 37 key subject areas, and multiple languages.