I have used Google doc before. I thought sharing documents on Google docs was really cool. As a team, we can incorporate our weekly newsletters, behavior calendar, units of study and other documents we need throughout the year. In kindergarten we each have a subject to plan during the year. Prior to our weekly team meeting, we could post our lesson plans. This would give us a chance to read them and then bring our questions and ideas to our meeting.
I like the forms and spreadsheet templates as well.