Kubikat is the collective catalog of four of the leading German scholarly research institutes in the field of art history * Kunsthistorisches Institut in Florence (Max-Planck-Institut) * Zentralinstitut für Kunstgeschichte in Munich - funded by the Bavarian Ministry of Sciences, Research and the Arts * Deutsches Forum für Kunstgeschichte (Centre allemand d'histoire de l'art) in Paris - funded by the Foundation of German Humanities Institutes Abroad (DGIA) * Bibliotheca Hertziana (Max Planck-Institut für Kunstgeschichte) in Rome The catalog project began in 1993 as a joint initiative of the institutes in Munich, Rome and Florence, supported by the German Research Foundation (DFG)

arXiv is an e-print service in the fields of physics, mathematics, computer science, quantitative biology, quantitative finance, statistics, electrical engineering and systems science, and economics. It provides access to more the 1.3 million e-prints. The Max Planck Society is a member institution of arXiv.

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.

CiteSeer is a scientific literature digital library and search engine that focuses primarily on the literature in computer and information science. CiteSeer aims to improve the dissemination and feedback of the scientific literature and to provide improvements in functionality, usability, availability, cost, comprehensiveness, efficiency, and timeliness in the access of scientific and scholarly knowledge.

Cogitatio is an academic and community-oriented publisher based in Lisbon, which was founded in 2014 with the aim of promoting the open access dissemination of scientific knowledge. Cogitatio currently publishes 4 peer-reviewed Open Access journals focusing on research in the social sciences and humanities. From January 1, 2023, the Max Planck Society covers article-processing charges for Max Planck authors centrally. Further details are available on the MPDL website.

Welcome to CogPrints, an electronic archive for self-archive papers in any area of Psychology, neuroscience, and Linguistics, and many areas of Computer Science (e.g., artificial intelligence, robotics, vision, learning, speech, neural networks), Philosophy (e.g., mind, language, knowledge, science, logic), Biology (e.g., ethology, behavioral ecology, sociobiology, behaviour genetics, evolutionary theory), Medicine (e.g., Psychiatry, Neurology, human genetics, Imaging), Anthropology (e.g., primatology, cognitive ethnology, archeology, paleontology), as well as any other portions of the physical, social and mathematical sciences that are pertinent to the study of cognition.

Digi20 concentrates on the digitalization of monographs published in the second half of the 20th century, predominantly in the field of humanities and social sciences. In the first phase of the project, approx. 4,700 titles of programme segments of the publishers Vandenhoeck & Ruprecht, Wilhelm Fink / Ferdinand Schöningh as well as Otto Sagner were digitized. In a second phase, further approx. 1,750 titles are being included till 2014 by consecutively digitizing all monographs up to a defined ‘Moving Wall’ of three to five years to the current year of publication.

Traditionell liegt der Schwerpunkt der Sammlung auf Künstlermonographien (auch Ausstellungskatalogen), kunsttopographischer Literatur zu den Regionen und Orten Italiens sowie auf Quellenschriften

Die Campus-Bibliothek für Informatik und Mathematik ist die gemeinsame Bibliothek des Max-Planck-Instituts für Informatik Saarbrücken (MPI-INF), des Max-Planck-Instituts für Softwaresysteme Saarbrücken (MPI-SWS), des Deutschen Forschungszentrums für Künstliche Intelligenz GmbH (DFKI) und der Fachrichtungen Informatik und Mathematik der Universität des Saarlandes.

The Library of the Max-Planck-Institute for the Study of Religious and Ethnic Diversity is a specialized library with a focus on religious studies, anthropology, political science and sociology. The library does not participate in interlibrary loans but serves as a reference library to provide literature and information, mainly to the members of the Institute.

Die Campus-Bibliothek für Informatik und Mathematik ist die gemeinsame Bibliothek des Max-Planck-Instituts für Informatik Saarbrücken (MPI-INF), des Max-Planck-Instituts für Softwaresysteme Saarbrücken (MPI-SWS), des Deutschen Forschungszentrums für Künstliche Intelligenz GmbH (DFKI) und der Fachrichtungen Informatik und Mathematik der Universität des Saarlandes.

Die Campus-Bibliothek für Informatik und Mathematik ist die gemeinsame Bibliothek des Max-Planck-Instituts für Informatik Saarbrücken (MPI-INF), des Max-Planck-Instituts für Softwaresysteme Saarbrücken (MPI-SWS), des Deutschen Forschungszentrums für Künstliche Intelligenz GmbH (DFKI) und der Fachrichtungen Informatik und Mathematik der Universität des Saarlandes.

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.

The SSRN eLibrary consists of two parts: an Abstract Database containing abstracts on over 60,500 scholarly working papers and forthcoming papers and an Electronic Paper Collection currently containing over 38,400 downloadable fulltext documents in Adobe Acrobat pdf format. The eLibrary also includes the research papers of a number of Fee Based Partner Publications.