The Proceedings of the National Academy of Sciences is one of the world's most-cited and comprehensive multidisciplinary scientific journals. Established in 1914, PNAS publishes the results of original research, as well as science news, commentaries, reviews, perspectives, colloquium papers, and actions of the National Academy of Sciences. The MPG subscription also covers article-processing charges for Max Planck authors in "Proceedings of the National Academy of Sciences of the United States of America (PNAS)". Further details are available on the MPDL website.

The integration between ProQuest Dissertations & Theses Global with the Web of Science enables seamless discovery of early career, post-graduate research from all around the world, alongside records for journal articles, conference papers, book chapters, preprints, patents, and more. ProQuest Dissertations & Theses Citation Index makes more than 5.5 million multidisciplinary dissertations and theses searchable, from over 4,100 institutions and more than 60 countries, dating back to 1637. Researchers have simultaneous access to unpublished and published scholarship that helps them to discover emerging trends, identify new areas of research and find post-graduate programs engaged in cutting-edge research. For joint subscribers of the Web of Science and PQDT Global, direct full text linking from the Web of Science to the ProQuest platform is available, giving access to 3 million full-text works from thousands of universities. Additionally, cited reference indexing and linking helps to further connect dissertations and theses to related works and discover hard-to-find sources of research.

The PsycINFO databases cover the professional and academic literature in psychology and related disciplines including medicine, psychiatry, nursing, sociology, education, pharmacology, physiology, linguistics, and other areas. Coverage is worldwide, and includes references and abstracts to over 1300 journals and to dissertations in more than 30 languages, and to book chapters and books in the English language. Over 50,000 references are added annually. Popular literature is excluded.

SAGE Journals Online provides access to more than 1000 journals with a coverage spanning the humanities, social sciences, and science, technology, and medicine. Max Planck researchers have full text access to a multidisciplinary selection of the full journal collection. In addition, the agreement covers article-processing charges for Max Planck authors in Gold Open Access journals and in hybrid titles in the SAGE Premier package. Further details are available on the MPDL website.

The Science Online platform provides fulltext access to the peer-reviewed journals published by the American Association for the Advancement of Science (AAAS).

Sciwheel is an advanced reference management system that provides assisting tools for discovery of research works, reading, annotation, as well as scientific and collaborative writing. It features a web-based application, a browser extension, citation tools for Microsoft Word and Google Docs, and a mobile application.

Scopus is a large abstract and citation database of peer-reviewed literature, including scientific journals, books and conference proceedings, covering research topics across all scientific and technical disciplines, ranging from medicine and social sciences to arts and humanities. Further, with smart tools totrack, analyze and visualize research, Scopus empowers you to advance your science beyond the text.

The Times Digital Archive provides convenient access to an extraordinary library of back issues of this renowned newspaper online. By taking the microfilm collection of The Times (London) and producing a high-resolution digital format with searchable images, The Times Digital Archive represents unprecedented access to one of the most highly regarded resources for the study of 18th century history and onward.

The goal of this database is to provide researchers with an opportunity to cross-search the contents of major Russian periodicals on social sciences and humanities. It is comprised of journals of the Russian Academy of Sciences ranging from archeology to linguistics, as well as popular literary editions, and independent scholarly publications. New titles are added on a regular basis. This Universal Database grows retroactively. Full-text and full-image content of print editions is reproduced with original pagination.

Ulrich’s Periodicals Directory is a bibliographic database providing detailed, comprehensive, and authoritative information on serials published throughout the world. It covers all subjects, and includes publications that are published regularly or irregularly and are circulated free of charge or by paid subscription. Ulrich’s was first published in 1932.

The Web of Science™ Core Collection provides researchers with access to the world's leading bibliographic and citation databases. Authoritative, multidisciplinary content covers over 12,000 of the highest impact journals worldwide, including Open Access journals, as well as over 150,000 conference proceedings and more than 50,000 editorially selected books. You'll find current and retrospective coverage in the sciences, social sciences, arts, and humanities, with coverage back to 1900. A unique feature of the WoS is that from any bibliographic record in the database links are available to its cited references, to related articles and to citing articles. In some instances additional links (e.g. to the journal impact factor) may also be available.

Wiley Online Library Books feature over 15,000 scholarly and professional books, handbooks, dictionaries, companions and landmark book series from Blackwell Publishing, John Wiley & Sons, and Wiley-VCH. From this collection, a set of more than 1,000 e-books was purchased for users from the Max Planck Society. This selection is continuously extended by single e-book acquisitions by MPG libraries. In addition, the MPG purchased 9 electronic Major Reference Works and the Encyclopedia of Life Sciences.