Ok, there are admittedly some Google products that haven't quite worked out as well as Google would have liked and have yet to change the computing world as we know it -- Google Wave, anyone?. But for Google's products that changed things, their presence ranges from pretty useful to indispensable. Among these is Google Calendar, which has the advantage of being online, customizable and easy to share with a group of friends and surprisingly simple to share with your iCal app. Read on to find out how to create a Google group calendar to share with your friends, family and bowling group, and how you can export it to iCal so that you never miss an important date again.