You should take a look at http://videolectures.net http://videolectures.net which is a website dedicated to scientific content. More specifically, they go to di

You should take a look at http://videolectures.net http://videolectures.net which is a website dedicated to scientific content. More specifically, they go to different conferences (mostly machine learning related), bring their own camera crew, and later synchronize videos with ppt presentations. They don't have a business model because they are funded (and "owned") by some Slovenian government/university/research institution.