At the recent PyOhio conference I saw a neat trick, with PostgreSQL event triggers advanced the web hosted slides. I think it was this one http://pyvideo.org/vi

At the recent PyOhio conference I saw a neat trick, with PostgreSQL event triggers advanced the web hosted slides. I think it was this one http://pyvideo.org/video/2842/pushy-postgres-and-python http://pyvideo.org/video/2842/pushy-postgres-and-python ... anyway, the presenter was able to just simply stay in his shell, and participants could watch the slides on their laptops, and he'd occasionally refer to them on the large screen as well.