[rickr]

talk has been around for like...30 years now:

https://en.wikipedia.org/wiki/Talk_(software)

[nl]

And YTalk for multi-way chat: http://linux.die.net/man/1/ytalk

[drincruz]

I used to love talk. No holding back with thoughts since they see you typing immediately. 8)

[omaranto]

I really liked the talk idiom where you first typed something rude, then slowly erased it one letter at a time, and finally typed a euphemism. Like what people use strikethrough for now, but it was funnier in talk somehow.

[mverwijs]

Only idio^H^H^H^Hnice people use talk!

[kazinator]

Talk is great because people can complete each other's sentences and such, which is impossible with instant messaging (unless people hit send for incomplete thoughts).