The 'Yahoo chat room' service has been discontinued by Yahoo since July 17, 2018. After the closure of the chat rooms, the service has been replaced by the new 'Yahoo Messenger'. Both services were created by the Stanford graduates who founded Yahoo in 1997. It lasted for 20 years, but it has now been shut down for good. There are two major problems with Yahoo Messenger. The first is that it has been completely replaced by Facebook, while the other was discontinued by them. The second one is Facebook, which merged the two.