So, Microsoft has released version 1 of a list of websites that won't run in "super-standards" mode in IE 8. Some highlights:
And, my personal favourites:
There were a pile more, some of similar calibre - I didn't bother scanning the whole list myself (there were a thousand or so). I suspect a lot of these were the sites making fixes for older, less standards-compliant versions of IE, in which case they'd be fixed shortly. But still, a bit crazy.