#0 - Oct. 10, 2009, 3:15 a.m.
We are aware of the issues currently affecting access to instances and battlegrounds on the Whirlwind battlegroup (http://www.worldofwarcraft.com/pvp/battlegrounds/battlegroups/), and are currently investigating. Here is a list of potentially affected realms:
Anub'arak
Blackwater Raiders
Bladefist
Cenarion Circle
Cenarius
Darrowmere
Echo Isles
Fenris
Hyjal
Korialstraaz
Lightbringer
Maiev
Misha
Ravenholdt
Shu'halo
Sisters of Elune
The Forgotten Coast
Uther
Vashj
Winterhoof
I'll provide updates here as they become available.