The new "Web Page Error Toolkit" is a web application that uses Live Search to provide alternative search results on the error page. These search results will be relevant to the searchers keyword query.
Here is what the new error page will look like:
The aim behind the new feature is to make it an easier and a better experience for the searcher. The last thing Microsoft would want searchers to do is to give up on searching for the right website. Additionally, this new feature may potentially give Microsoft a boost in the search market share, which they definitely need as much help as possible with.
Posted by Courtney Mills at 7:53 AM GMT