I think you will find for the BBC that they are more interested about getting the content up there first, rather than just categories. And I have to agree with why they do this.
There is no point in a visitor coming to your website and just seeing half a page of links before they get to the content itself. For the user experience, this would be a bad move. Not sure there are really any times I can say having a huge list of links above the content is a good move.
Regards,
Andy
