there’s also https://www.futurelearn.com/ that has many different subjects and is free. MIT has started giving free online lessons too.
CourseSource is a great resource.
History and Discover channels on tv. Quora and other sites on the web
Thanks for sharing great resources. I have tried coursera for my programming course and received great help. Also Used to take help from essay writer service for my exam purpose.
I do OCW - open courseware and MOOCs - massively open online courses. Like @Nseraf mentioned, mit has them: ocw.mit.edu and edx.org. Then again, eyewire has one of their own https://science.eyewire.org/
I actually plan to post my own on my personal website one day. You’ll see it here: brittany-bunk.weebly.com