The MPI-MP opened its reference library in 1995. The library houses over 2000 books and 120 prominent molecular biology-related journals.

Gemeinsamer Katalog des Max-Planck-Instituts für Biogeochemie und des Max-Planck-Instituts für Chemische Ökologie, Jena.

The library of the MPIs Martinsried is a specialized reference library primarily rendering services to research staff and visiting scientists. Its collection of books and ejournals is mainly used on behalf of the Institute's research projects.

The Campus Library is a shared service unit for following neighboring Max Planck institutes: Max Planck Institute for Biological Cybernetics, Max Planck Institute for Biology Tübingen and the Friedrich Miescher Laboratory

A collaborative effort of the Networked Digital Library of Theses and Dissertations (NDLTD), OCLC, VTLS, and Scirus, the NDLTD Union Catalog contains more than one million records of electronic theses and dissertations. For students and researchers, the Union Catalog makes individual collections of NDLTD member institutions and consortia appear as one seamless digital library of electronic theses and dissertations.

In OLC you have access more than 25 million articles from over 20,000 scientific periodicals beginning with the year of publication 1993. The Online Contents records are supplied by Swets and are updated daily.

The database OLC Environment 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 514 journals are being indexed back to the year of publication in 1993.

Various dictionaries are available.

Project Gutenberg is a volunteer effort to digitize and archive cultural works. Founded in 1971 by Michael Hart, it is the oldest digital library. Project Gutenberg's mission is "To encourage the creation and distribution of eBooks".

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.

RiffReporter is a German news magazine based in Berlin and was founded in 2017. RiffReporter delivers in-depth and thoroughly researched journalistic content on topics such as environment, science, technology, society and global affairs. The cooperatively run journalism portal was awarded the renowned Grimme Online Award in 2018. The MPG subscription covers full text access to all content available on the RiffReporter platform.

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.

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.

The BSZ develops and maintains the SWB database in cooperation with 1,200 libraries in Baden-Württemberg, Pfalz, Saarland and Sachsen. The online catalog offers bibliographic data free of charge: Monographs, periodicals, articles, loose-leaf collections, off-prints, conference proceedings, university publications, reviews, abstracts, tables of contents, maps, music, audiovisual material, microforms, electronic resources (data media), online resources; scientific and popular literature from all subjects and in all languages from the 15th century to the present; scientific literature (according to the DFG special subject fields programme) from theology, ancient orient, art, music, archeology, law and criminology;

The Umwelt-Online platform contains all relevant legal regulations on topics such as environmental protection, occupational safety, transport of dangerous goods, hazardous materials and systems engineering. The content is continuously updated. Die Plattform Umwelt-Online enthält alle relevanten rechtlichen Regelungen zu den Themen Umweltschutz, Arbeitssicherheit, Gefahrguttransporte, Gefahrstoffe, Anlagentechnik und Anlagensicherheit. Die Inhalte werden kontinuierlich entsprechend den Veröffentlichungen der Regelungsgeber aktualisiert.

In addition to the 75.000 prints belonging to the basic content, VD16 comprises a supplement of more than 25.000 new titles. New titles are added continuously through acquisitions by the Bayerische Staatsbibliothek for the Collection of German Prints, as well as through data provided by national and foreign libraries.

The vifabio portal offers rapid access to biological literature and information. It offers a parallel search in various biologically relevant library catalogues, bibliographic databases, and the internet guide (a collection of selected, quality controlled internet sources).