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.

The Handbook of Pragmatics provides up-to-date information on research in the field of linguistic pragmatics, conceived as the interdisciplinary (cognitive, social, and cultural) science of natural language use. This electronic encyclopaedia of one of the major fields of language studies is a continuously updatable source of state-of-the-art information for anyone interested in language use.

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.

The collection Jewish Life in America, c1654-1954 covers different materials related to the history of Jewish communities in America from their first arrival in New York in 1654 to the integral part that they play today. The material is based on original manuscript collections from the unique holdings of the American Jewish Historical Society in New York. The collection includes six major organisational collections and twenty-four collections of personal papers. The personal collection contain letters, scrapbooks, autobiographies, notebooks and other materials relating to the late 17th through to the mid-20th century.

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

Language Description Heritage (LDH) provides open access to descriptive material about the world's languages with a focus on traditionally difficult to obtain works. This collection is being compiled at first by the Max Planck Institute for Evolutionary Anthropology and now by the Max Planck Institute for the Science of Human History. -- Language Description Heritage (LDH) ist eine Datenbank, die freien Zugriff auf deskriptive Materialien zu den Sprachen der Welt gewährt. Dabei legt den Schwerpunkt auf überlicherweise schwer erhältlich Arbeiten. Die Sammlung wurde zuerst am Max-Planck-Institut für Evolutionäre Anthropology angelegt und wird nun am Max-Planck-Institut für Menschheitsgeschichte fortgeführt.

LexiQamus is a reference work and online tool for identifying and analyzing illegible words from Ottoman-Turkish texts. It can even be used to search for the recognisable parts of a word. Based on over 170,000 words and phrases from 19 different dictionaries, LexiQamus comprises the entries of the reference work "A Turkish and English lexicon" (1890) by James Redhouse and all content from the website osmanlicasozlukler.com which collects entries from Ottoman dictionaries.

The Library of Latin Texts, originating from the Cetedoc Library of Christian Latin Texts (CLCLT), is the most comprehensive collection of Latin texts. The database contains texts from the beginnings of Latin literature (Livius Andronicus, 240 B.C.) until the 2nd Vatican Council (1962-1965). It covers the classical period as well as works by the Church Fathers, medieval Latin literature, or even works from the reformation and counter-reformation. Additionally, texts from Corpus Christianorum / Series Latina and Continuatio Mediaevalis as well as from a large number of editions of the Corpus Scriptorum Ecclesiasticorum Latinorum, from the Patrologia Latina, from the Sources Chrétiennes, from the Opera Sancti Bernardi, Biblia Sacra Vulgata and the pseudo epigraphical scripts of the Old Testament are available. The subscription covers full text access to all content added until January 2015.

The Linguistic Bibliography Online is an essential linguistic reference tool and provides over 300.000 bibliographical references to scholarly publications in linguistics. The database covers all disciplines of theoretical linguistics, both general and language specific. Material is included concerning all geographical areas. Particular attention is given to endangered and extinct languages as well as lesser known Indo-European and non-Indo-European languages. These latter areas are not usually covered by other bibliographies. Up-to-date information is guaranteed by the collaboration of some forty contributing specialists from all over the world. With annually over 20.000 records added, arranged according to a state-of-the-art system of subject and language descriptors, the Linguistic Bibliography remains the standard reference work for every scholar of linguistics.

The Lin|gu|is|tik portal provides scientific information on all areas of linguistics, ranging from general and comparative linguistics, over the major European philologies to endangered and ancient languages. The portal pursues an interdisciplinary approach, enabling scholars and students to transcend the disciplinary boundaries for their academic work. Das Lin|gu|is|tik-Portal bietet Fachinformationen zu allen Bereichen der Sprachwissenschaft, von Allgemeiner und Vergleichender Linguistik über die größeren europäischen Einzelphilologien bis hin zu kleinen, bedrohten oder alten Sprachen. Das Portal ist interdisziplinär ausgerichtet, um Linguisten und Studierenden wissenschaftliches Arbeiten über die eigenen Fachgrenzen hinaus zu ermöglichen.

American English dictionary, encyclopedia, etymologies, Spanish-English dictionary

MIT Press Direct is the content platform for publications owned by the MIT Press. The Press is one of the largest and distinguished university presses in the world and a leading publisher of books and journals at the intersection of science, technology, art, social science, and design. Within the Direct to Open (D2O) model Max Planck users have access to current ebooks from selected subject collections (published between 2022 and 2024), i.e. STEM collection, art and design collection, humanities and social sciences collection. The MPG subscription also covers the complete archive collection with more than 2,500 scholarly books spanning the publishing history of the MIT Press.

The Mohr Siebeck eBooks collection contains academic books, series and multi-volume works in the subject areas of theology, history, phiosophy, law, economics and sociology. The book selection is continuously extended by single e-book acquisitions and series purchases by MPG libraries.

The MPI EVA Library Catalogue provides information on books and journals available from the Institute's library.

The Library and Information Service (BIS) is the joint library for the Max-Planck-Institute for Meteorology (MPI-M) and five institutes of the Center for Earth System Science and Sustainability. The cooperation with some university institutes regarding the library exists since the foundation of the MPI-M in 1975.