MSN Blocks Backlink Checking
For those of you who use some of the advanced query syntax in MSN search engine such as link:, linkdomain: and inurl:,
You may have noticed that this functionality has been recently turned off. MSN have been seeing broad use of these features by legitimate users but unfortunately also what appears to be mass automated usage for data mining. So for now, MSN have made the tough call to block all queries with these operators.
MSN Team are doing their best to get this back online as soon as possible in a manner that allows folks that use this functionality for real queries.
Hope to get lost features back soon 
