Your World of Text is an infinite grid of text editable by any visitor. The changes made by other people appear on your screen as they happen. Everyone starts in the same place, but you can scroll through the world using your mouse.
Put any letters at the end of the URL to go to a new world. For example, http://yourworldoftext.com/forexample. They all start off blank. If you use something hard to guess, no one will be able to visit your world unless you tell them about it.