We've had some people from Edge Hill University in China showing an onlne course, and this brought up an interesting question; Will the learning objects hosted outside the University (YouTube videos, etc.) be blocked in China?
With a move to running online courses that can be used internationally, this is one of the hidden localisation issues that will sometimes need to be considered.
Wikipedia has a list of websites blocked in China, which seems to be updated regularly and might be a useful resource.
Perhaps the best way to solve this and other issues, is for content producers to make their learning objects licenced in a way that would allow people to download and place the objects in a VLE when necessary. Creative Commons can help you licence your work in a way that would allow sharing while you hold on to the rights, and David Wiley's presentation "Openness, Localisation, and the Future of Learning Objects" is an eloquent argument for doing this.