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.

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 CRC Handbook of Chemistry and Physics (HBCP), updated annually, provides broad coverage of all types of physical science data commonly encountered by scientists and engineers. It consists of tables of data and current international recommendations on nomenclature, symbols and units. A new series highlights the achievements of some of the major historical figures in chemistry and physics.

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

Henry Stewart Talks publish state of the art audio visual presentations by leading world authorities. Biomedical & Life Sciences is a collection of specially prepared animated audio visual presentations with synchronized narration by world leading scientists, organized into comprehensive series, regularly updated and growing to over 2,000 talks.

The Humanities & Social Sciences Collection is Informit’s core academic research collection. This multidisciplinary collection provides access to fresh perspectives in the arts, communication, education, history, linguistics, politics and more. It is dedicated to content from and about Australia, New Zealand, the Pacific and South East Asia, with articles by scholars worldwide.

The IEEE Electronic Library (IEL) provides access to almost a third of the world's current electrical engineering and computer science literature, featuring high-quality content from the Institute of Electrical and Electronics Engineers (IEEE) and the Institution of Engineering and Technology (IET). IEL covers all IEEE journals, transactions, and magazines, IEEE conference proceedings, IET conference proceedings, IEEE published standards and IEEE Standards Dictionary Online. The subscription includes complimentary access to selected VDE VERLAG Conference Proceedings. Access is provided via the IEEE Xplore interface.

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.

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

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.

This database of the European Union (EU) contains the complete EU related terminology in all 24 official languages of the EU. -- Diese Datenbank der Europäischen Union (EU) enthält die gesamte EU-bezogene Terminologie in allen 24 EU-Amtssprachen.

Book reviews are an important element in the academic discussions. They are a tool for quality measurement with respect to the amount of publications published annually and give an indication of the importance of a published work. IBR contains over 1,16 million entries on book reviews from the years 1985ff. The database is international and interdisciplinary, over 560.000 reviews have been published in approx. 6,723 academic journals mainly in the Humanities and Social Sciences. ---- Rezensionen sind ein wichtiges Element der wissenschaftlichen Diskussion. Sie sind ein Qualitätsfilter in der jährlichen Publikationsflut und sind mitbestimmend für den Stellenwert eines Werkes. Die IBR umfasst über 1,16 Mio. Nachweise von Rezensionen aus den Jahren 1985ff. Sie weist ca. 6.723 interdisziplinäre, internationale, vornehmlich die Geistes- und Sozialwissenschaften berücksichtigende Rezensionen in wissenschaftlichen Zeitschriften zu 560.000 rezensierten Werken nach.Verbindung zum Volltext der Rezension via SFX

The International Encyclopedia of the Social & Behavioral Sciences offers a source of social and behavioral sciences reference material. It comprises over 3,900 articles, commissioned by 71 Section Editors, and includes 90,000 bibliographic references as well as comprehensive name and subject indexes.

IOPscience is a platform for scientific content published by IOP Publishing and selected publishing partners. Users from the Max Planck Society have access to nearly the entire journal collection. This includes the content provided by the Institute of Physics, The Electrochemical Society, Turpion (English translations of leading Russian journals) and the American Astronomical Society. In addition, the Max Planck Society covers article-processing charges for all IOP fully Open Access and selected hybrid journals centrally. Further details are available on the MPDL website.

The Journal Citation Reports is a source for journal evaluation, which includes journal data and unified rankings for 229 science and social science categories. It covers the Journal Impact Factor (JIF) and Emerging Sources Citation Index (ESCI) for all journals in the Web of Science Core Collection. Each journal can be seen within the context of all journals in its category, providing a comprehensive, holistic view for the evaluation of a journal's performance.

JournalTOCS is the largest, free collection of scholary journal Tables of Contents (TOCs): 29,639 journals including 12,153 selected Open Access journals and 11,312 Hybrid journals from 2930 publishers.

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. Additionally, the license covers the basic tier usage of Constellate - a text and data analysis tool, which uses primary source content from JSTOR. 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 Karlsruhe Virtual Catalogue (KVK) is a meta search engine which allows you to simultaneously access selected library and book trade catalogs worldwide. Altogether, these resources contain hundreds of millions of books, magazines and other media.