Be sure to add everyone to your Google Calendars so that we can all see what each other's doing.

Here's the best set up I've seen so far that allows the most openness with specific points of privacy. Basically, it will keep your calendar closed off from the InterWeb, let your friends see everything you're doing, and all you to hide the details of things you don't want your friends to see (like the dr's appt for that really nasty rash you picked up having gone out with one of Brock's girls).
- Go to your calendar at http://www.google.com/calendar.
- Click Settings in the upper right hand corner.
- Click the tab Calendars.
- In the section "My Calendars," click the name of the calendar whose settings you want to change.
- Click the tab Share this calendar.
- In the section "Share with everyone," select Do not share with everyone.
- In the section "Share with specific people," add people and give access:
- To add a new person:
- Under "ADD A NEW PERSON," enter the email address.
- Under "Has permission to," select See all event details.
- To change permissions for an existing person:
- Under "Has permission to," select See all event details.
- Click Save.
- For each event that you want to make private, do the following:
- Create a new event or click on an existing event.
- In the bottom right hand corner of the event, click Options.
- In the section "Privacy," under "This event is," select Private.
- In the section "Show me as," choose the following:
- If you want to mark the time as busy, select Busy.
- If you want to mark the time as free, select Available.