deadsea - 11:42 am on May 24, 2012 (gmt 0)
I'm wondering why Google doesn't report bad links from your site too you in webmaster tools. Seems like it would be an easy feature for them to implement. They certainly know which sites you link to. They also know the status of pretty much every url on the internet. They could even go further and report the content of page that you link to has changed substantially.
Google: if you are listening, please add a broken links service to webmaster tools.