MOOs

     Multi-user domains (MUDs), as well as MUDs/object-oriented (MOOs) and Multi-user Shared Hallucinations (MUSHes), are text-mediated virtual environments that allow users to connect to the same place at the same time and interact with each other. You "talk" by typing and "listen" by reading; in this way, it is much like IRC. But MOOs differ in that they create a virtual environment--a cafe, a library, a house--and the users manipulate cyber-objects (using words) that assist in their conversations, self-definitions, and in creating the virtual environment itself. Many MOOs exist where target language speakers and learners can interact regularly.