Stay in Sync with GCal and Thunderbird.

[techpr]

View and Update your Google Calendar offline from within Thunderbird by making use of the Lightning and Provider Add-ons. This step-by-step guide will show you how to get up and running (and staying in sync) in no time!

More... (http://digg.com/software/Stay_in_Sync_with_GCal_and_Thunderbird)