Have you heard about Google Wave? It’s a new communication tool by Google that was recently enabled for Google Apps domains like ours (JJWinter.com).
If you don’t have an email address on JJWinter.com you can use the normal Google Wave: http://wave.google.com.
If you do have an email address with JJWinter.com you can use the normal Google Wave (above) or you can use the JJWinter.com Google Wave: http://wave.jjwinter.com.
Click here for detailed information about the brand new public Winter Family Wave.
In any case whenever you want to “wave” you should enable Google Gears for your web browser or you should consider using Google Chrome.