Are you saying that we're doing a good job? :-) I'll pass it on to the
teams involved, it's nice to see that their work is not going
unnoticed!

One other element that plays a role in all of this is personalized
search. That can help with stemming, but it can also be really
interesting when it comes to disambiguation in general. "NOS" can be a
synonym for a kind of car enhancement technology, but it can also mean
a lot of other things: http://www.google.com/search?q=define%3Anos .
Words like "mercury" can be even more complicated:
http://www.google.com/search?q=define%3Amercury . If the search engine
knows that you're an astronomy-fan, maybe it will be able to help you
find the planet first.

How can we help you find things even better?

John