SAM network: video database of knowledge
26/11/2017 permalink linked site
A LOT of videos about various subjects, including science, politic, art and others.
The main point is that you can annotate the videos you are watching, helping future viewers and, obviously, allowing a recommandation engine to provide you a well-tailored content.
The video highlighted at the moment was a conf of Villani, about an unification of economics, physics and geometry.