One of the key tool that engtech uses is ScheduleWorld, which is a online PIM system that has great synchronization support (yes, it supports Google Calendar syncing). Check this how-to if you are looking for syncing these services and applications with your personal information. The Holy Grail of Synchronization: How to synchronize Microsoft Outlook (multiple locations), Google Calendar, Gmail, iPod, and mobile phone with Funambol / ScheduleWorld – [engtech]
