Perhaps not a "great" online lecture, but it seems exceptionally useful to know how strategy consultants create power-points to communicate with top-level decision makers.

A lecture on the China-Africa relationship from a (refreshing) African perspective. A lecture by Mr Gyude Moore delivered at the University of Chicago.

Not only a great researcher, but also a great communicator. Don't miss the Nobel Lecture by Dr Donna Strickland (Physics). Even accessible if the last time you read physics was quite a long time ago or you're in school now.

Has the West Lost (its Way)? Prof Kishore Mahbubani would say... yes.

Alain de Button on Emotional Education. With religion "gone", how do you create well-balanced and happy adults?

This is the first of a really informative lecture series on Philosophy from the Faculty of Humanities, Leiden University. Very good as an introduction or a clear refresher course.