Two days ago we reported, Google Webmaster Tools Link Page Troubles Again. Since then, there has a huge amount of discussion on this topic.
Tons of SEOs and Webmasters were really frustrated that the tool wasn't giving them information. They should keep in mind that this is a relatively new tool that is free and we are lucky to have. :)
In any event, I just checked to see if the tool is now operating correctly and it is. We now can login to Google Webmaster Tools and get to that linkage data without error.