ELFI is an information brokerage system which supports its users in keeping up-to-date information on funding opportunities referring to the original data source. ELFI offers information on more than 11,000 programs on research funding, from about 4,900 national and international sponsors. The information is provided to scientists, research consultants, students and companies on the web.

The ScienceDirect interface provides access to the electronic content owned by Elsevier and third-party information providers like Cell Press. Max Planck researchers have full text access to nearly the entire journal collection with archival content, including Cell Press and The Lancet journals. In addition, the Max Planck Society covers Open Access fees for Max Planck authors in more than 2500 journals. Further details are available on the MPDL website. The MPG subscription also covers a collection of 680 Elsevier eBooks acquired in 2015. Moreover, selected eBook backfiles have been purchased within the scope of the German national licenses program.

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.

F.A.Z.-Corporate bietet Zugang zu allen Publikationen aus dem Frankfurter Allgemeine Archiv (F.A.Z.-Bestand ab 1992 ff. und Archiv "F.A.Z. 49-92"). Die Datenbank enthält mehr als 7 Millionen Dokumente. Alle Artikel sind im HTML-Format, als Artikel-Faksimile im PDF-Format und als Zeitungsseite in der originalgetreuen Form abrufbar. Zusätzlich kann man ganze Ausgaben durchblättern (Blätterarchiv).

The FHI library offers the researchers of the Fritz Haber Institute a strong support in the publication process, especially for Open Access publications. It supports the researchers in all their information needs, providing electronic and printed contents and collects special literature covering the research fields of the institute (surface science and catalysis). The library catalogue contains books, e-books, dissertations, journal volumes, book series and holdings from the department libraries.

Frontiers is a community-oriented open-access academic publisher and research network. It was launched in 2007 by scientists from the Swiss Federal Institute of Technology in Lausanne and aims to provide better tools and services to researchers in the Internet age. Since then, Frontiers has become one of the fastest-growing open-access scholarly publishers: over 400,000 high-quality, peer-reviewed articles have been published in about 200 community-driven journals across more than 300 specialty niches in science, medicine and technology. The Max Planck Society covers article-processing charges for Max Planck authors centrally. Further details are available on the MPDL website.

GBV is the Common Library Network of the German Federal States Bremen, Hamburg, Mecklenburg-Vorpommern, Niedersachsen, Sachsen-Anhalt, Schleswig-Holstein and Thüringen. The head office of the GBV (VZG) is situated in Göttingen. The GBV has established a virtual library in form of the GBV Union Catalogue (GVK) combining the resources of all participating libraries and making them easily accessible to the public.

GeoReM is a Max Planck Institute database for reference materials of geological and environmental interest, such as rock powders, synthetic and natural glasses as well as mineral, isotopic, biological, river water and seawater reference materials. It contains published analytical data and compilation values (major and trace element concentrations and mass fractions, radiogenic and stable isotope ratios). GeoReM covers all important metadata about the analytical values such as uncertainty, analytical method and laboratory. Sample information and references are also included. GeoReM contains almost 3,400 reference materials, about 46,200 analyses from almost 10,000 papers, and preferred analytical values (State: November 2017).

The database GEOROC is maintained by the Geoscience Centre at Göttingen University. The database is a comprehensive collection of published analyses of volcanic rocks and mantle xenoliths. It contains major and trace element concentrations, radiogenic and nonradiogenic isotope ratios as well as analytical ages for whole rocks, glasses, minerals and inclusions. Samples come from 11 different geological settings. Metadata include, among others, geographic location with latitude and longitude, rock class and rock type, alteration grade, analytical method, laboratory, reference materials and references.

GeoScienceWorld (GSW) is a nonprofit collaborative and comprehensive resource for research and communications in the earth sciences, which is built on a core database of peer-reviewed journals and is integrated with the GeoRef index. The platforms offers a single point of access to more than 40 full text scholarly journals from leading geoscientific organizations, plus specialized searching capabilities and links to millions of relevant resources hosted elsewhere on the Web. Though access to current volumes is no longer licensed, perpetual access rights have been granted to the content published until August 2018.

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.

The union catalog lists the holdings of all scientific libraries in Hessen and Rheinhessen. Inter-library loan requests may be submitted.

IGI Global is an international publishing company that specializes in scholarly research publications and databases covering all aspects of information science technology utilization and management. Access to the full texts of the journal collection was provided by a MPG subscription until the end of 2022. Beginning January 1st, 2023, IGI Global journals flipped to fully OA can be easily accessed directly through their respective webpages.

Essential Science Indicators is a product that enables researchers to conduct ongoing, quantitative analyses of research performance and track trends in science. Covering a multidisciplinary selection of more than 11,000 journals from around the world, this in-depth analytical tool offers data for ranking scientists, institutions, countries, and journals. Available on the InCites platform, the ESI data may directly be accessed from highly ranked records in the Web of Science.

ingentaconnect hosts scholarly books and journals from a range of different publishers. Millions of articles, chapters and reports are available for you to search across, and access to full text is available by pay-per-view or by subscription to individual publications.

ICSD is the world’s largest database for fully identified inorganic crystal structures. It currently contains about 193,000 peer-reviewed data entries including their atomic coordinates. Updates are made twice a year (in spring and in fall) with data taken from scientific journals and other sources. Thanks to these many heterogeneous data sources the database has a wide coverage. ICSD is also updated retroactively. The oldest records date back to the year 1913 and contain information from publications by William Henry Bragg and his son.

The Journal Citation Reports provide statistical information on journals (e.g. journal impact factors) sourced from the Web of Science Core Collection. The JCR includes information on more than 9,500 science journals, 3,500 social sciences journals, 1,500 arts & humanities journals and 4,500 Gold Open Access journals. Although available on a separate platform, the JCR may directly be accessed from most of the records included in the Web of Science.

JSTOR provides access to more than 12 million academic journal articles, books, and primary sources in 75 disciplines. Users from the Max Planck Society have access to selected archival collections of scholarly journals and more than 3,000 Open Access ebooks. The book selection is continuously extended by single e-book acquisitions by MPG libraries. For the archival collections, JSTOR's agreements with publishers include an updating provision referred to as a "moving wall". The moving wall is a fixed period of time ranging, in most cases, from two to five years, that defines the gap between the most recently published issue and the date of the most recent issues available in JSTOR.

The KOBV-Index is a central database that is maintained and regularly updated at KOBV-Zentrale. Der KOBV-Index ist eine zentrale Datenbank, die in der KOBV-Zentrale gepflegt und regelmäßig aktualisiert wird.

The Library of Congress Online Catalog is a database of books, serials, computer files, manuscripts, cartographic materials, music, sound recordings, and visual materials in the Library's collections.