It's sad...
It's sad that companies are at the beck and call of shareholders. Of course, they did ask for that, but you get the current situation where Yahoo! are too 'proud' to get taken over by Microsoft. I can't see how Yahoo! can justify not selling - I'd really hate them to do so though... If I were in their position I'd do exactly the same.
Yahoo! are going to have to do a massive rethink of their buisness and work out where to go from here. Some of their sites (namely Flickr) have value, but I've no idea what other stuff they're doing.
The info about their European market share is interesting - I can't say I know anyone who uses Yahoo! over Google here (in the UK)... I guess that does mean that their US market share is somewhat better than their global market share though...