Recently, it seems that Yahoo Search Engine is always inactive, when I input the linkdomain or some other command, it appears nothing, And I heard that Yahoo will cancel the external links severs... It is a shocking news, the external links is so important guideline to evaluate a site.
Do you have any official update on this? I think there isn't any official note from Yahoo lately. However, you can check your internal and external links pointing your site on other tools also. Say for example Google's webmater tool is now showing all the links pointing your site rather to the limited version which they used before.