[artbikes]

Talkomatic was the world's first multi-user chat application. It was hosted on the PLATO system where Ray Ozzie once worked. There is a online version created by the original authors at:

http://talko.cc/

[g_h]

I was curious about the timeline of chat applications and googled it. EMISARI pre-dated Talkomatic by a couple years: http://www.livinginternet.com/r/ri_emisari.htm