Blizzard continues to create more WoW Classic servers to meet overwhelming demand. - Inven Global
Blizzard 'Substantially' Increases World of Warcraft Classic Server Capacity to Combat In-Game Queues - IGN
The Server Souvenir: Taking Home Remnants of Virtual Worlds | Platypus
WoW Classic servers are on fire and Blizzard is trying to put them out | PC Gamer
What kind of server hardware does it take to host 5,000-15,000 players simultaneously with low latency for a game like World of Warcraft Vanilla? - Quora
World Of Warcraft Classic is 'substantially' boosting player capacity | PC Gamer
WoW Archivist: A rolled-back history of realms | Engadget
Blizzard begs WoW Classic players to transfer away from queues as tech can't resolve capacity chaos | Massively Overpowered
What is the concurrent player capacity of a server? : r/classicwow
Blizzard expects World of Warcraft: Classic servers to be "more crowded" than ever before. - Inven Global