Microsoft Search using Google Index?

Interesting piece on how Microsoft may be using the Google Index to improve it's index of sites. Apparently the new MSN bot has been hitting urls's that don't appear in it's own index (many of which are dead links), so they must be getting a list of url's from somewhere. Google and Yahoo are likely candidates. Read more.

A preview of microsoft's new search: http://beta.search.msn.com/

I'm also a big fan of Amazon's new search tool A9: http://www.a9.com/