World of Tanks: Down For Maintenance 8.4

Servers are down until 10AM EST.

Give it a bit and don't eat your fingers just yet!

Cluster Downtime Begins: 23:00 PST (02:00 EST on March 7, 2013) on March 6, 2013

Cluster Downtime Ends: 07:00 PST (10:00 EST) on March 7, 2013

This outage apparently includes the forums, main web site, etc.  Here's the cached google page