My Cyber Twin is a virtual personality you can develop of yourself online. It can carry on conversations via text with anyone, and its responses are supposed to be based on how you’ve programmed it through responses to a number of questions.
You create it, get a url for it, and then other people can “talk” to it while you’re off-line. You can get a copy of the conversation. You can also restrict who gets to talk to your “Cyber Twin” by requiring an access code.
It seems to me that this would be an interesting activity for English Language Learners to participate in — both creating a Cyber Twin and talking to someone else’s Twin.