These days, there are many conference centers and universities recording seminars and conference talks and make them available on the web. Some examples:
However, keeping track of all the websites for these videos is simply not practical. Does anyone know of website that is a bit like arxiv, but for videos? If not, would anyone be interested in starting one? What I have in mind:
Everyone can add links for talks that they find interesting.
Vidoes are divided into subjects, with tags, like the ones we have on MOF.
Weekly email people can subscribe to in order to get latest updates.
A discussion board for each video link so that people can add comments and ask questions.
Any other ideas?