Aral Balkan has excellent things to say about charades such as "privacy on facebook": https://www.youtube.com/watch?v=jh8supIUj6c#t=34m10s https://www.youtube.c

Aral Balkan has excellent things to say about charades such as "privacy on facebook": https://www.youtube.com/watch?v=jh8supIUj6c#t=34m10s https://www.youtube.com/watch?v=jh8supIUj6c#t=34m10s All in all, this is a great talk, I highly recommend you watch from start.