I found a couple of problems with Microsoft live search. The first is when you click on the help link. You get a nice popup window with some slick looking help material. However there are a couple of typos:
Then if you actually try out linkdomain:microsoft.com you get:
After gloating for a bit I then decided to report it and I get a certificate error for feedback.live.com.
I did ignore the error and tell them about the problem though.