You can read more below, but if you just want your $5 savings, use this code: D8BYCM when you buy Spanning Sync ($20 for a year with this coupon, or $60 forever).

On top of that, when you buy a license, you are automatically part of their Save 5+Make 5 deal, allowing you to make money off of referrals. How cool is that? I’ll make $5 if you use my code. It could end up being pretty lucrative, as Aaron has shown. Heck, if you use my code, all you have to do is refer 4 friends and Spanning Sync is entirely FREE for you.

Spanning Sync synchronizes your Google Calendar with iCal. It also (in the upcoming version – releasing very soon) syncs your Google Contacts with your Address Book.

This app basically fills the void that Google hasn’t yet. I love Gmail, and I love Google Calendar, but I was often frustrated by the fact that my contacts were not in sync. Now they are.

I’m also doing some tests on using iCal versus strictly Google Calendar, and this app has been great while I perform my tests, allowing me to use Google Calendar at work and iCal at home.

The only thing it doesn’t do is sync tasks from iCal to Google Calendar, but that’s Google’s fault, because they don’t have a task feature in their calendar, for some ridiculous reason.

More on calendars, tasks, and productivity in the VERY near future.