Open textbooks are free, online learning materials with Creative Commons licenses. Many of the collections will have links to the same books, but each will have a particular focus, and items you can't find in other collections.
Initiated by Rice University, their free textbooks are developed and peer-reviewed to ensure they meet the scope and sequence requirements of college courses.
Multimedia Educational Resource for Learning and Online Teaching (MERLOT) is a curated resource of free and online textbooks for use in teaching and learning.
Search websites for images you can share, use, and remix. Creative Commons allows creators of works to release them into the public domain or license works by placing some restrictions on their use.
