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.

The Bibliography of the Hebrew Book covers the national bibliography of the Jewish people: a detailed description of all the literature printed in the Hebrew alphabet, across the world in all languages. The Hebrew bibliography includes most of the books printed in Hebrew, Ladino, Yiddish, Judeo-Arabic and other Judeo languages found in Israel and worldwide, printed since the establishment of the Hebrew print (around the year 1460) till 1960. The Bibliography of the Hebrew Book also includes a short biography for authors, translators, editors involved in the Hebrew literary creation. The database includes more than 115,000 books and more than 15,000 short biographies.

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.

DART-Europe is a partnership of research libraries and library consortia who are working together to improve global access to European research theses. The Dart-Europe E-theses Portal enables access to open access research theses from nearly 600 universities in 28 European countries.

DBIS (Datenbank-Infosystem) is a web application to find scientific databases. It includes licenced and free databases for most disciplines.

The Deposit Once of the Technische Universität Berlin makes qualified scientific text documents and research data of members of the TU Berlin available online. The repository is committed to the principles of Open Access and includes parallel publications from peer-reviewed publishers (post-prints) as well as dissertations, monographs, conference proceedings, collections and other scientific treatises.

The primary aim of DOAB is to increase discoverability of Open Access books. Academic publishers are invited to provide metadata of their Open Access books to DOAB. An overview of participating publisher can be found here.

Edition Open Access provides open access to the publications of the Max Planck Research Library for the History and Development of Knowledge. The aim is to disseminate the results of scholarly work – in accordance with the open-access paradigm – to a broad audience rapidly and at low cost. The volumes presented here are directed at scholars and students in a wide range of disciplines. The works are available online both as print-on-demand books and open-access publications and can be accessed, together with additional information.

The Document and Publication Server of the Humboldt-Universität zu Berlin is a service of the university library and the computer and media services. It offers the organisational and technical framework to all members of HU Berlin for publishing scientific documents digitally. Documents that are stored include single publications and publication series, collections, conference papers, research reports, journals (e-journals), theses and dissertations, master theses and seminar papers.

Since 1966, the ERIC Thesaurus has been a critical component of ERIC. It has evolved over the years from a printed publication used in libraries to an online tool that can help everyone find targeted resources in ERIC. This year, ERIC is updating the Thesaurus to add new terms and update existing entries. Find out how the Thesaurus supports ERIC users in their search foreducation resources. You will also hear about the work that takes place behind the scenes to maintain this large controlled vocabulary of more than 11,000 terms in the field of education.

Throughout Europe, national patent offices and the European Patent Office (EPO) offer free patent information on the Internet Patents reveal solutions to technical problems, and they represent an inexhaustable source of information: more than 80 percent of man's technical knowledge is described in patent literature. From the middle of 1998 onwards, esp@cenet users have been able to access the bibliographic data of all patents published in the preceding two years by any member state of the European Patent Organisation, as well as by the European Patent Office and the World Intellectual Property Organization (WIPO). In addition, full-page facsimile images of documents are also retrievable to facilitate more detailed analysis of these documents. The data for this particular service is stored at the relevant national office.

Google Book Search is a service from Google that searches the full text of books that Google scans, converts to text using optical character recognition, and stores in its digital database.

About 30 databases of the International Labour Organization. -- Etwa 30 Datenbanken der International Labour Organization.

The Max Planck e-Book Index provides holdings of electronic books licensed for users in the Max Planck Society.

MPG.PuRe is the publication repository of the Max Planck Society. It contains bibliographic data and numerous fulltexts of the publications of its researchers. The repository is based on PubMan, a publication repository software developed by the Max Planck Digital Library. PuRe was introduced in the MPG in May 2009 and replaced the former institutional repository eDoc.

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.

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.

MPG Resource Navigator is a web application to navigate through scientific information resources available to staff and guests of the Max Planck Society. It includes licensed databases, digital collections, and reference works. In addition, recommendable retrieval tools available on the web free of charge are part of the collection. Moreover, almost all Max Planck Institute library catalogs, as well as selected external ones, are accessible from here.

Zenodo is an open data repository, developed and operated by CERN. It is an catch-all repository, that welcomes research from all over the world, and from every discipline. Zenodo does not impose any requirements on format, size, access restrictions or licence. A digital object identifier (DOI) is automatically assigned to all Zenodo files and it is integrated into reporting for research funded by the European Commission.