China has always been known to censor it's internet, and now iTunes has become the latest victim, with Apple's music store being made completely unavailable in mainland China. It is supposed that this is due to the pro-Tibet album that has recently been released on the service, which China strongly disagrees with, and has as such, blocked the service.

Apple are more than likely in negociations to make the store available, but I would expect that China will no longer be able to access "Songs for Tibet" when it comes back online!