Localized sites
YouTube launches versions of its site for the UK, Brazil, France, Ireland, Italy, Japan, the Netherlands, Poland, Spain, and the US. At launch, the only difference in these versions of the website is that the user interface is translated:
We wanted to clear up a misconception about the nine localized sites we launched on June 19: the content has not been “broken down” by region. All of your videos are available to everyone, no matter which site you set as your default. So even if you choose a particular country as your preference, the content available to you is still the same.