Tungle.me

Tungle.me is a personal scheduling app that makes scheduling meetings easier across organizations, calendar systems, and time zones. Tungle.me syncs with many web-based calendars including Microsoft Outlook (with or without Exchange), Google Calendar, Apple iCal, Entourage for Mac, Lotus Notes and Facebook. Tungle.me also supports scheduling meetings on-the-go with Tungle.me for iPhone and BlackBerry. Tungle.me is a free service and competitors include Timebridge and Doodle.