Want to study without leaving your home for free? Of course its not totally free. You still have to spent on Internet connection and computer time/hardware. No free lunch, right?
Or needing materials for your class whether you’re a student or a teacher…..
Here is the link to the Massachusetts Institute of Technology (MIT) Open Courseware:
Of course you won’t get a MIT or OCW certificate or a degree, but you’ll gain additional knowledge. And something that you won’t loose when you share to others. I think this is the principle behind all these open sharing online…. 
So please share this to others…
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