Here's How - Open Access
MIT's online newspaper The Tech, announced in March, 2009 that faculty had "voted unanimously to approve a resolution that allows MIT to freely and publicly distribute research articles they write."
This decision is no surprise given that MIT already offers all of their course content through MITOpenCourseWare free of charge.
Participation in one of MIT's online courses will not grant you any official degree or credit (nor will taking the free course materials from Stanford, UC Berkley, Yale or UCSC).
However, the free courseware will reflect just about all of the undergraduate and graduate subjects taught at these top schools.