Bashiok said: As we previously announced, we’re in the process of rolling out region-wide battleground matchmaking. Once completed, all realms for our North American players will be matching together for battlegrounds, and four larger groups for dungeon finder use. This is a large technical undertaking, and while we’re extremely excited to see this huge advancement in connecting players within World of Warcraft, the complexity means we’ll be rolling it out slowly in a staggered approach. Battlegroup listings and which realms are within each can be found at http://www.worldofwarcraft.com/pvp/battlegrounds/battlegroups/Phase 1 – Complete Battlegrounds The below battlegroups are now linked for battleground matchmaking. Whirlwind EmberstormDungeon FinderThe below battlegroups are now linked within their group for dungeon finder matchmaking. Group AWhirlwind EmberstormPhase 2 – Implemented 11/3/10 Battlegrounds Two additional battlegroups are added and all four are linked for battleground matchmaking. Whirlwind Emberstorm Vengeance BloodlustDungeon FinderThe below realms are linked within their groups for dungeon finder matchmaking. In the final phase, all realms are expected to be grouped in this manner based on their physical locations. Group A Whirlwind Emberstorm Group B Stormstrike Nightfall RetaliationFinal Phase – TBD based on performance of previous phases We’ll be updating this thread as these phases progress.