These websites provides open source book and media libraries: www.gutenberg.org https://open.bccampus.ca/ http://www.oerconsortium.org/discipline-specific/ http://www.nsdl.oercommons.org/ www.oreilly.com/openbook/ https://ocw.mit.edu/courses/online-textbooks/ http://guides.library.ubc.ca/businessebooks/opensource https://openstax.org/higher-ed http://open.umn.edu/opentextbooks/ https://www.saylor.org/books/ https://www.skillscommons.org/ https://courses.lumenlearning.com/catalog/lumen https://textbooks.opensuny.org/category/available-now/ http://cool4ed.org/findetextbooks.html https://www.intechopen.com/ http://globaltext.terry.uga.edu/books https://www.merlot.org/merlot/advSearchMaterials.htm https://www.oercommons.org/ http://hippocampus.org/