BASE – Bielefeld Academic Search Engine
- Search engine for academic resources
- More than 100 million documents, from more than 5,000 sources
- Full text of 60% of documents available for free (open access)
- Journals, newspapers, books, musical notation, maps, audio, images and video, datasets, software.
DOAB: Directory of Open Access Books
- Searchable index of peer reviewed books published under open access and freely available.
- Browse by subject to find books in a variety of subject areas.
- Free digital lending library of over 2 million eBooks, including textbooks, plays, and key texts in science, literature, art, etc.
- Study guides, simulations, interactive learning, practice units – real world applications, videos, flashcards, assessments e.g. physics simulations, maths practice tests, review scientific concepts
- Also has free eBooks.
World Digital Library
- Digitisations of Primary Source material from around the world, across wide variety of subjects and time periods.