I am looking to create an online course platform to provide free information about different subjects. I would be looking to hire independent contractors for this. The categories would be about personal growth, social media, job searching etc... I am looking to do this not to make money from selling these courses but providing resources to people who are less fortunate. A concern is that the instructors re-publish materials already created for other companies, course material is copied from somewhere else, or the material is inaccurate as some of my concerns. I would like to know how many other things I will need to address. If I use screen shots can I just claim fair use as there is no monitization of these courses?