Online Textbooks Websites
Vitalsource
Technology and digital solutions for academic publishers, educators and school administrators to develop brilliant learners.
15,498 
$ 1,430,400.00
Free Online Textbooks, Flashcards, Practice, Real World Examples, Simulations...
CK-12 Foundation provides a library of free online textbooks, videos, exercises, flashcards, and real world applications for over 5000 concepts from arithmetic to history
45,704 $ 485,760.00
