Most people can find out here - but people in France and maybe some other countries where google video is not supported will have to go here instead (NSFW unless you have earphones). The second link is a trick I have learned of courtesy of the Blue Witch where you use the google translate service as a proxy. This is intended to solve the "some censor is blocking my internet access" problem but it also seems to solve the "country is not the USA" problem that affects a few websites and that is what I'm using it for.
If you drag this ProxyURL link up to your Mozilla/Firefox Personal toolbar or Internet Exploder's equivalent then whenever you hit content that is blocked for either of the two reasons above you can click on the link to get a proxy copy. You get a chance to edit the link before it is submitted. This is so that either you can paste in an entirely different one or because the proxy software decided to redirect you to some whiney error page and you need to remove the first part of the URL.