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.

Copernicus Publications has been publishing highly reputable peer-reviewed open access journals since 2001. Through interactive, multi-stage open access publishing, Copernicus aims to bring real transparency into scientific quality assurance. The Max Planck Society covers article-processing charges for Max Planck authors centrally. Further details are available on the MPDL website.

This bibliographic database is the central access to the specialist information on education. In the center of the service are the specialist literature databases as well as comprehensive collections of information at the various aspects of educational science. -- Diese bibliografische Databank ist der zentrale Einstieg in die pädagogische Fachinformation. Im Mittelpunkt des Services stehen die fachlichen Literaturdatenbanken sowie umfassende Informationssammlungen zu den verschiedenen Aspekten der Erziehungswissenschaft.

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.

Library, Information Science & Technology Abstract (LISTA) indexes more than 690 periodicals, plus books, research reports and proceedings. Subject coverage includes librarianship, classification, cataloging, bibliometrics, online information retrieval, information management and more. Coverage in the database extends back as far as the mid-1960s.

The OSF Preprints search combines records from various preprint repositories, including arXiv, bioRxiv, Cogprints, PeerJ, PsyArXiv, RePEc and SocArXiv.

ScienceOpen is a networking platform for scholars to enhance their research in the open, make an impact, and receive credit for it. The site provides advanced search and discovery functions, combined with post-publication peer review, recommendation, social sharing, and collection-building features. The Max Planck Society covers article-processing charges for ScienceOpen Research and ScienceOpen Poster centrally. Further details are available on the MPDL website.

SocArXiv, open archive of the social sciences, provides a free, non-profit, open access platform for social scientists to upload working papers, preprints, and published papers, with the option to link data and code. SocArXiv is dedicated to opening up social science, to reach more people more effectively, to improve research, and build the future of scholarly communication.

This database contains references to 185.858 articles of educational relevance from domestic and foreign journals and newsletters. All education areas are covered: kindergarten, school, job training, academy, further training, discussions and decisions of matters of education policy. The database was concluded on 30 April 2015 and is no longer updated, but the archive is still available for document ordering. -- In dieser Datenbank sind 185.858 bildungsrelevante Artikel aus in- und ausländischen Zeitungen und Newslettern nachgewiesen und mit Schlagwörtern erschlossen. Dabei werden alle Bildungsbereiche - vom Kindergarten über Schule, Berufliche Bildung, Hochschule, Weiterbildung bis hin zu bildungspolitischen Diskussionen und Entscheidungen - abgedeckt. Die Datenbank wurde am 30.04.2015 abgeschlossen und wird nicht mehr aktualisiert. Das Archiv steht weiterhin für Kopienbestellungen zur Verfügung.