WOW CLASSIC INSTANCES
Vanilla / Classic WoW Instances: A 10-Minute Guide [World of Warcraft]
Blizzard Introduces Daily Instance Limit to Halt Botting Pandemic in World of Warcraft: Classic
30 Instance Cap Added (an April fools Joke from 2006)
World of Warcraft 1.12.1 (Classic) - Lower Blackrock Spire Run (lbrs) - (Instance) - [60fps]
WoW Classic: How to reset instances by yourself (Revised!)