This is an example of a book content entry. Supposedly we would be able to collaborate on this document. Here's an example of what we could use it for. Drupal has a lot of modules that extend the functionality of the site. I'll post some ideas.

The Private Messaging Module -
http://drupal.org/handbook/modules/privatemsg

The Table Manager Module -
http://drupal.org/project/tablemanager
(Don't be frightened by this write up, it's actually quite easy to use out of the box, I have it running on my laptop, this is mainly about how to configure the display of tables. The default look should be OK for our purposes.

Calendar
Have a look at this event modules comparison, perhaps that will help us decide which is the best way to attack the shared calendar idea.

Perhaps somebody could try editing this post and see what happens.