Here it is: http://etherpad.com/
This is just what I needed:
You see, about 10 other people & I are in our own little produce group, were we buy food cheap in huge boxes from warehouses that stores buy from. Then we divide the food up. Well, we’ve had problems with our way of finding out what we want: emailing. So this may just be what we are looking for!
Reply with your thoughts (& if you know of other products that do this for free).