browsee - 5:15 am on Mar 13, 2011 (gmt 0)
Several people have commented on spammy sites with exact math domains and lots of spammy incoming links with exact match anchor text ranking quite well in Google and Bing. Matt said they are looking into this.
This is a big thing, I know a website bought keyword .com .net .co.uk and released articles on all the domains. They are ranking really well because of keyword domain name.