Shareflow lets you set-up “threaded” conversations on different topics — all in the same place.
This kind of message board can be useful for a project involving collaboration among multiple classrooms.
I have to say, though, that I don’t know if Shareflow is that much better (or even as good) as a number of other similar tools on The Best Online Tools For Collaboration — NOT In Real Time or The Best Online Tools For Real-Time Collaboration lists.
Check it out and let me know if I’m missing something.
Thanks to the Make Use of blog for the tip.