Keen Talks provides you with a compilation of great talks, debates, and interviews that you can easily browse by subject area or by speaker.
It has a wide variety of educational videos and lectures covering different topics. You can share talks you like via email, Facebook or Twitter.
This is a free platform where you can access and watch videos and lectures from the best and well renowned universities such as Berkeley, Harvard, MIT, Princeton..
Learners TV offers video lectures to college students. These lectures cover a wide range of subjects.