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 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.

Regional Business News provides comprehensive fulltext coverage for regional business publications. The database incorporates coverage of 75 business journals, newspapers and newswires from all metropolitan and rural areas within the United States. This database is updated on a daily basis.

The Rockefeller University Press publishes three journals with a good standing in the biomedical field: * The Journal of Experimental Medicine, * The Journal of General Physiology, * The Journal of Cell Biology (formerly: The Journal of Biophysical and Biochemical Cytology). The MPG subscription also covers article-processing charges for Max Planck authors in the three journals by RUP. Further details are available on the MPDL website.

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.

SciELO (Scientific Electronic Library Online) is a program of the Sao Paulo Research Foundation for the cooperative publishing of open access journals on the internet. Content includes regional journals from Latin American and the Caribbean as well as titles from Spain, Portugal and South Africa. The index covers approximately 650 titles (over 350 adding content to journals already covered in the Web of Science) and contains several million cited references.

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

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.

SocINDEX is the world's most comprehensive and highest quality sociology research database. Subject headings from a 15,000 term sociology-specific thesaurus designed by expert lexicographers and extensive indexing for books, monographs, conference papers and other sources is included. Searchable cited references are also provided.

The SpringerLink platform provides MPG staff with access to a huge collection of English and German eBooks from 2005 onwards, as well as the English and the German collection of the Springer Book Archive (1842-2004). In addition, the content of selected book series is available. Includes major reference works and dictionaries. Max Planck researchers who publish a monograph or edited volume with Springer Nature as an Open Access eBook receive a discount on the standard Book Publishing Charge. MPDL covers the costs remaining on a pro rata basis. Further details are available on the MPDL website.

Springer Nature publishes the largest available collection of reproducible laboratory protocols and methods for the life sciences. The Experiments platform provides accees to the content from SpringerProtocols, Nature Methods, Nature Protocols and Protocol Exchange through a single easy-to-use platform, designed to save researchers' time.

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 Current Protocols contains a collection of updatable step-by-step, reproducible laboratory methods, covering a total of 20,000 protocols across 18 subjects in the life sciences. Each protocol is carefully selected by the editorial board members, written by experts, and rigorously edited to ensure repeated success.

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.

wiso is an online database specially tailored to the needs of users from academic and research institutions by GBI-Genios. It aggregates mainly German content from various publishers, covering economics, social sciences, psychology and technology. wiso provides access to major reference databases, to full texts of selected journals, e-books, magazines and newspapers like VDI Nachrichten or Handelsblatt as well as to company information and market data.

wiso Companies enables full text access to Company profiles, announcements in the German Companies Registration Office, and annual financial statements . An overview of included resources is available via https://www.wiso-net.de/sourceInformation/categoryNavigation?searchId=%3A3%3AFIR....

wiso provides online access to selected books about economics and management from various German publishers, including the Bank-Verlag, BusinessVillage, Diplomica, Duncker & Humblot, Rainer Hampp or the Haufe Verlag. An overview of included resources is available under https://www.wiso-net.de/sourceInformation/categoryNavigation?searchId=%3A3%3AEBO....

References within the fields of business, economics, credit management and ergonomics are searchable via a single interface. An overview of included resources is available via https://www.wiso-net.de/sourceInformation/categoryNavigation?searchId=%3A3%3AWIR....

wiso Fachzeitschriften enables full text access to industry and market information from a wide range of (mostly German) journals and business publications. An overview of included resources is available via https://www.wiso-net.de/sourceInformation/categoryNavigation?searchId=%3A3%3AFZS.