Open access (OA) repositories have proliferated in the past two decades, resulting in a broad spectrum of content hubs that enable free access to academic materials. Some repositories have comprehensive coverage while others specialize in particular content types. Below are some common repository categories.
Select Disciplinary Repositories (see this page for more examples)
Select Repositories of Preprints and Working Papers (see this page for more examples)
Select Repositories of Theses and Dissertations
Select Data Repositories (see this page for more examples)
Select Repositories of Open Educational Resources (OER)
Select Comprehensive Repositories
You can find more repositories of different kinds by searching these directories:
Questions? Feel free to contact the Library's subject specialists or the Center for Digital Scholarship for assistance.
If you prefer searching across a number of OA repositories simultaneously, you may find the following tools useful:
For Scholarly Content
For Research Data
For Open Educational Resources (OER)
If you need help, feel free to ask a librarian.