Free, adaptable, openly licensed textbooks and supplemental resources.

One of the primary places to find listings of quality, peer-reviewed, open access scholarly research journals that publish their material free to everyone in the world.

Indexes and provides access to scholarly, peer-reviewed open access books and helps users to find trusted open access book publishers. All DOAB services are free of charge and all data is freely available.

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HathiTrust is a partnership of major research institutions and libraries working to ensure that the cultural record is preserved and digitally accessible. A major source of digitized books and other documents. Some of the collection if available for free to all, and additional content is available to Carleton faculty, staff, and students.

(Searches through citations, reviews, and author information) An open-access index to published literature in mathematics. Included articles are reviewed and assigned a subject from the Mathematics Subject Classification. Covers 1826 - current.

Ebooks with key subject areas covered in the complete collection include art and architecture, biomedical sciences, business and finance, computer science, cognitive science, design, education, environment, game studies, humanities, information science, linguistics, neuroscience, new media, philosophy, and social sciences. Contains open access Direct to Open books and journals.