Google Apps

This video produced by a manager of Google describes several collaboration services:

• Gmail
• Google Calendar
• Google Docs
• Google Spreadsheets.

I have signed up with Google Apps using iMechanica as a domain name, with up to 10,000 accounts. Here is the start page: http://partnerpage.google.com/imechanica.org. But I have not thought up a good use for the iMechanica community. If you have a good idea, please leave a comment below.