Unix/Linux talk/ntalk is my favorite method of textual communications. Too bad I can only use it with a few of my friends, and only occasionally at that. We can

Unix/Linux talk/ntalk is my favorite method of textual communications. Too bad I can only use it with a few of my friends, and only occasionally at that. We can communicate far more quickly if both can see the other's questions/answers even before they are fully typed out.