YouTube videos

Has anyone come across a list of useful videos that are available through YouTube? A search on the phrase "international trade" brings up a lot of short clips which look interesting e.g. one from mishymail about an academic course on International Commercial Negotiation and Dispute Resolution. If you can recommend any clips that you have watched that would be great - thanks. By the way if you are searching and use "exporting" you will get heaps of computer related results.