you know that now we could have MIT Course Material for free...
a free and open educational resource (OER) for educators, students, and self-learners around the world.
Is a publication of MIT course materials
Does not require any registration
Is not a degree-granting or certificate-granting activity
Does not provide access to MIT faculty
Read what Pak Triatno Yudo Harjoko says about this site
“An intellectual gem”