PhET Interactive Simulations Interactive simulations for Science & Math (Physics, Chemistry, Math, Earth Science & Biology)
Internet Archive - millions of free books, movies, software, music, websites, and more
LibreVox - Free public domain audiobooks. Search by author, title, genre/subject or language.
Internet Archive - books, movies, software, music, websites, and more
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Textbooks/Ancillaries
Galileo Open Learning Materials
OER Repositories
Canvas Commons - Build a course using Canvas Commons materials
Digital Archives
Florida Memory - State Library & Archives of Florida
Florida Open Academic Library - statewide searchable database that includes an inventory of digital archives and collections held by public post-secondary education institutions (§ F.S. 1006.73 (2)(a)4.)
Library of Congress - digital collections that are free to use and reuse
SmartHistory "images for teaching & learning, specific periods & regions"