We did a task with Jude on the ways of communicating.
The first thing we did was to write down all the ways of communicating on our own, on a piece of paper. We then got into progressively bigger groups to make sure that we all had each others ideas. This task worked ok, but took a long time, and at the end of it, only one person had the complete list.
The second thing we did was to write different ways of communication on a computer in groups of two. The document was then emailed to the other person. This task worked ok, but the list was smaller than in the first task due to less people having contributed to it. However both members of the group ended up with a copy of the list.
After doing that we used Google Docs to collaborate on a document together. This meant that we weren't all doing the same part of the document. It also meant that we could all see what the other one had put instantaneously. It was fine, but quite buggy, coming up with server errors all the time, and at one point, losing some work.
In conclusion, the best way of doing this task is, in my opinion, to use google docs. This is because it is easy for everbody to add to the list and everybody can see and download the completed document. The only downside to google docs is the buggy-ness of it. However, with a bit of time in the development, I think Google could make their web apps work better. The problems I experienced with google docs were mostly minor, and could be worked around.