Taking notes
You can make public actors accountable just by reporting on what they've said. If there's too much going on, collaborate on taking the notes.
But notes alone may produce too much text for anyone to handle efficiently. What if there were ways for groups to collaborate on creating visualizations of the notes, and a graphical language that was commonly used to share the output? Like a radar screen — “this issue is big and coming towards us, click through to read the details.” Or “These are outlying issues.” Some kind of graphical outliner that would actually add water/meaning rather than taking it away.
If only someone would throw a lot of money at graphical groupware.