Google Wave is a great tool for taking notes for team meetings or sharing notes while at a conference. Getting started using Google Wave is much like writing an email with threaded replies for others to view.
It’s ideal when taking notes at a conference, creating a task list, or editing a document together.
Check out Google’s guide to getting started
And this tutorial for creating your first Wave:
The advantage of using Google Wave is that others can simultaneously edit a Wave and review all changes that have been made by replaying the changes.