Open Access Search Engines
- Directory of Open Access BooksLarge collection of open access books, made available by academic publishers such as Springer and Brill.
- Directory of Open Access JournalsList of free, full text, quality controlled scientific and scholarly online journals. Covers journals for all subjects, in all languages. (Full text)
- George Mason OER MetafinderA note of caution: This engine searches Open Access resources. Not all of the items you retrieve will be in the public domain or have a Creative Commons license. In other words, they will not be OER.
- JSTOR Open"Explore academic content on JSTOR that is open to everyone, everywhere. Search thousands of free journal articles and open access book chapters."
- OASIS"Openly Available Sources Integrated Search (OASIS) is a search tool that aims to make the discovery of open content easier. OASIS currently searches open content from 57 different sources and contains 159,459 records."
- upaywall Simple QuerySubmit a DOI to see if there is an open access version available.
Open Access Respositories Search
- CORE: Open Access Research Papers"Seamless access to millions of open access research papers, enrich the collected data for text-mining and provide unique services to the research community."