Another MOOC platform recommendation. Also have some exclusive courses that can be found only on Coursera so neither edX and Coursera can have a huge content gap over the other (I think, anyway).

Hard to be able to create a course inside of the platform. Mostly created by well-known institutions and universities. Yup, I recommend it a lot.

What's Y minutes, you ask? The world may never know.

I think not a lot of people recommend to take a deep examination at this site but it does have a lot of things to offer. Seriously, take some time to take a stroll (uhh... visit?) into this site.

recommended

I recommend this one though not as much.

Personally, I mostly see this more of a quick referential site instead of a tutorial site.