The American Mathematical Society can provide complimentary electronic “reserve” copies of their textbooks for students who do not have access to their print books. Contact AMS through the “request desk copy” link on the specific textbook page.
Elsevier is making the 256 textbooks currently on its ScienceDirect platform freely available through August 31, 2020. A title list of textbooks freely available is here (this link downloads an Excel spreadsheet).
This link provides a list of organizations offering free to use courseware for a variety of disciplines. This list was created by the Community College Consortium for Open Education Resources, and access to this material is always freely available.
R2 Digital Library offers fully integrated and searchable medical, nursing and allied health source book content from key health science publishers, on a web based platform. A full list of titles on the R2 Digital Library platform can be downloaded here.
Please reach out to Kate Moore (email@example.com) regarding specific titles for your courses and we will activate access as soon as possible. Access to the R2 Digital Library will be available through the end of the semester.