Final Update: Saturday, 26 July 2014 11:04 AM UTC
We have restored connectivity to the backend environment and the galleries sites are working fine now. The users should not be experiencing theissue anymore.
We sincerely thank you for your patience and apologize for the inconvenience.
-MSDN Service Delivery Team
The Galleries site is currently unavailable due to a backend failure on the SQL cluster. We are currently working on restoring connectivity to the backend environment.
We apologize for the inconvenience and appreciate your patience.