Als historisch-biographische Lexika sind die ADB (55 Bände und ein Register, 1875-1912) und die NDB (23 Bände, seit 1953) erstrangige Informationsmittel zu ca. 90.000 Personen, die im deutschsprachigen Raum in herausragender Weise wirksam waren. Vom Mittelalter bis zur Gegenwart werden alle Bereiche des öffentlichen, wissenschaftlichen, wirtschaftlichen und kulturellen Lebens berücksichtigt.

Das Biographisch-Bibliographische Kirchenlexikon (BBKL) ist ein biographisches Nachschlagewerk zur Kirchengeschichte, begründet 1975 von Friedrich Wilhelm Bautz. Mit über 20.000 Artikeln, die sowohl von renommierten Wissenschaftlern als auch von interessierten Laien verfasst wurden, gilt das BBKL als sehr aktuelle und umfangreiche biographische Informationsquelle zu Personen der Kirchen-, aber auch der Philosophiegeschichte. Nur der auf knappe Kurzinformationen beschränkte biografische Teil der BBKL ist kostenfrei zugänglich, der Rest ist lizenzpflichtig.

"Data Services for the Social Sciences" is a department of GESIS - Leibniz Institute for the Social Sciences. Its mission is to foster FAIR data, open science and reproducible research in the quantitative and computational social sciences. To ensure that data holdings remain usable and interpretable over the long term, it offers sustainable infrastructures and services for data management, curation, and long-term preservation. ​These include archiving services with different curation levels for different needs as well as access to archived data including access to sensitive data in the GESIS Secure Data Center. The services also cover the data registration agency da|ra and training on data management for easier retrieval and re-analysis of data.

The trilingual termbase DIN-TERM provides translations for German, French or English standardized terms. The database contains concepts from valid and withdrawn standards, draft standards and specifications.

The Research Data Centre (FDZ) of the German Federal Employment Agency (BA) at the Institute for Employment Research (IAB) is intended mainly to facilitate access to BA and IAB micro data for non-commercial empirical research using standardised and transparent access rules. The FDZ mediates between data producers and external users, and also controls for compliance with data protection regulations.

The International Monetary Fund's eLibrary simplifies analysis and research with direct access to the IMF's periodicals, books, working papers and studies. Various statistical and visualization tools to showcase IMF datasets are offered free of charge via the IMF Data platform.

Various dictionaries are available.

The department "Survey Data Curation", part of GESIS - Leibniz Institute for the Social Sciences, processes and prepares social science research data across a diverse range of data types to support research, especially in comparative perspectives across space and time. The curated data include long-term national (e.g., ALLBUS, GLES, Politbarometer, FReDA) and international (e.g., ISSP, EVS, CSES, Eurobarometer) survey programs with large user communities. The data are prepared for immediate re-use for research and teaching purposes. The department also offers services for linking surveys with geo-data and digital behavioral data.