The multidisciplinary database OLC International Relations and Area Studies contains table of contents of journals from several special subject collections, including political science, economics, the Middle East and other regional special subject collections. It offers a multidisciplinary selection from the Online Contents database, with additional input from other special subject collections. The International Relations and Area Studies section currently covers approximately 797 journals.

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 database OLC Mathematics and Informatics is a subject oriented selection of bibliographic data from the Online Contents database that is regularly enhanced by table of contents data from additional periodicals out of the special collections of the TIB Hannover. Currently 1,357 journals are being indexed back to the year of publication in 1993.

The database OLC Pharmacy is a subject oriented selection of bibliographic data from the Online Contents database that is regularly enhanced by table of contents data from additional periodicals out of the special collections of the UB Braunschweig, the central subject library of Germany for pharmacy.

The database OLC Physics is a subject oriented selection of bibliographic data from the Online Contents database that is regularly enhanced by table of contents data from additional periodicals out of the special collections of the TIB Hannover, the central subject library of Germany for technology and their related subjects, especially chemistry, computer sciences, mathematics and physics.

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.

Online Contents Social Sciences provides access to the tables of contents of journals in the field of sociology and social policy. It is a subject-oriented selection of bibliographic data from the Database Online Contents. The database is regularly enhanced by table of contents data from additional periodicals out of the special collections of the University Library Cologne.

OLC Technology is a subject oriented selection of bibliographic data from the Online Contents database that is regularly enhanced by table of contents data from additional periodicals out of the special collections of the TIB Hannover, the central subject library of Germany for technology and their related subjects, especially chemistry, computer science, mathematics and physics. Currently 2,393 journals are being indexed back to the year of publication in 1993.

Catalogue of Exhibited Works and Depository Holdings. The online edition Paintings in Museums presents a systematic index of the entire holdings of works, both on display and in deposits, owned by nearly 650 museums in Germany, Austria and Switzerland. A comprehensive and current catalogue for over 178,000 paintings, pastels, gouaches as well as mixed-media works from all ages, genres and styles of about 31,200 artists is therefore available to the user.

The database POLDOK, in its current version, contains up to 40,000 documents including bibliographical metadata, subject headings and summaries about the topic "Politics of the 80ies". The retrieval system "Freitext" enables fast and convenient access to the database. Freitext was developed in the course of the BMFT project "FiSch - Fachinformation in Schulen" under the management of Prof. Dr. Robert Funk. -- Die Datenbank POLDOK enthält in der vorliegenden Fassung knapp 40.000 Dokumente mit bibliographischen Angaben, Schlagwörtern und Kurzreferaten zum Themenbereich "Politik der 80er Jahre". Das Retrievalsystem Freitext ermöglicht einen schnellen und komfortablen Suchzugriff auf die Datenbank. Freitext wurde im BMFT-Projekt "FiSch - Fachinformation in Schulen" unter der Leitung von Prof. Dr. Robert Funk entwickelt.

Das Projekt "Propylaeum – Virtuelle Fachbibliothek Altertumswissenschaften" ist ein Internetportal, das Fachinformationen für den gesamten Bereich der Altertumswissenschaft anbietet, derzeit für die Fächer Ägyptologie, Alte Geschichte, Klassische Archäologie, Klassische Philologie und Vor- und Frühgeschichte. --

"Psyndex - Literature & Audiovisual Media" contains records on psychology from researchers in Germany, Austria, and Switzerland. Compiled by the German Center for Documentation and Information in Psychology at the University of Trier (ZPID), this database covers German and English journal articles, books, chapters, reports, dissertations as well as audiovisual media. The database is bilingual: titles and descriptors are in German and English. German publications are abstracted in German; English publications in English. The database is indexed with the Thesaurus of Psychological Index Terms by permission of the American Psychological Association. A bilingual thesaurus is included with the database.

PubPsych is a free information retrieval system for psychological resources, aiming to enhance the visibility of European and international psychological literature. It offers a comprehensive and balanced selection of resources from a growing number of international databases with a European focus, covering the needs of academic and professional psychologists. PubPsych includes more than 850,000 datasets and offers, where available, full-text linking, links to additional information and link resolving. Databases included: * PSYNDEX * PASCAL * ISOC-Psicología * MEDLINE® * ERIC * NARCIS * NORART * PsychOpen * PsychData

Refubium is a service of the university library of the Freie Universität Berlin. As an institutional repository it collects documents, dissertations, postdoctoral theses, and research data.

Das "Répertoire International d'Iconographie Musicale" (RIdIM) ist ein internationaler Verbund zur Verzeichnung und Erschließung von Musik- und Tanzdarstellungen im Bereich der bildenden Kunst und des Kunsthandwerks. In der "Datenbank zu Musik und Tanz in der Kunst" der RIdIM Arbeitsstelle Deutschland werden v.a. Objekte aus größeren Museen, Sammlungen und Bibliotheken in Deutschland katalogisiert. Die Erschließung der Kunstwerke in der Datenbank folgt formalen (Künstler, Titel, Entstehungsland, bzw. -ort, Technik, Datierung, besitzende Institution, Inventarnummer, etc.) und inhaltlichen Kriterien (allgemeine und musikalische Ikonographie, Musikinstrumente, allgemeine Beschreibung). Begleitend zur Katalogisierung dokumentiert die Arbeitsstelle die katalogisierten Objekte mit Bildreproduktionen.

The RISM database references mostly historical music manuscripts, the majority of them originated before 1800. - The original sources are available from the libraries, music archives, and private collections as indicated in the RISM database. These institutions can often be approached for reproductions. - About 700,000 entries (June 2010). -- Die RISM-Datenbank weist hin auf vor allem historische handschriftliche Noten, die Mehrzahl davon entstanden vor 1800. - Die Originale können in den angegebenen Bibliotheken, Musikarchiven oder Privatsammlungen eingesehen werden. Dort können oft auch Reproduktionen herstellen gelassen werden. - Ca. 700.000 Einträge (Juni 2010).

The research database "Scholarly Journals and Newspapers in the Age of Enlightenment", conducted by the Göttingen Academy of Sciences, provides an extensive systematic index to German-language periodicals of the 18th century. It is based on the long-term research project "Scholarly Journals and Newspapers", which besides indexing and digitizing these scholarly journals aims to visualize their significant role for the emergence and structures of the "Enlightened scientific community". The project focuses on interdisciplinary journals, comprising of original contributions, book reviews, scholarly news as well as all facets of critique. The interactive online database also includes the data of the two previous research projects "Index of German-language Periodicals" (IdZ 18) and "Systematic Index of German-language Review Journals" (IdRZ 18). By the year 2025, it will give access to 323 periodicals (ca. 2,775 volumes and ca. 1,260,000 pages), spanning the time period 1688-1815.

SSOAR collects electronic full texts from the domain of the Social Sciences and makes these texts available according to the Berlin Declaration on Open Access to Scientific Knowledge.

Das Statistik-Portal bündelt statistische Daten verschiedener Institute und Quellen. Es werden Statistiken zu über 80.000 Themenbereichen aus 22 verschiedenen Branchenkategorien aus mehr als 22.500 Quellen verfügbar gemacht. Der Fokus des internationalen Datenbestandes liegt auf den Ländern USA/China/UK/D-A-CH.