What I am wondering is if anybody knows of any other university/organization out there that are offering free courses to the public. I know about free online resources such as Khan Academy and MIT Open Courseware; I'm curious if there are any other (ideally free) structured online courses out there that allow you to get feedback on the assignments you complete.

Click through to this page to discover at least five institutions offering graded/attributed online courses for free. You want a Bachelor's degree for free? This is the place to start looking.

HSLDA has previously detailed our work to ensure that homeschool graduates are able to serve their nation by enlisting in the U.S. Armed Forces. After numerous homeschool graduates were refused recruitment simply because their diploma was granted to them by their parents and not by a traditional brick-and-mortar school, HSLDA worked with the Pentagon to draft a temporary policy to ensure that homeschool graduates were not discriminated against because of the source of their high school diplomas.