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Plaxo
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Plaxo synchronizes your Mac OS X Address Book with your Plaxo Universal Address Book. Wherever you install a Plaxo toolbar, your address book will be consistent and stay up-to-date automatically. You can also access your address book on the Web through Plaxo Online.
On Mac OS X 10.4 and newer, Plaxo for Mac also offers the ability to sync your iCal calendars to Plaxo Online (and on to any other Plaxo sync points, e.g. Google Calendars, Outlook, etc) For iPhone users, this is a real boon as your contacts and calendars are now kept in sync on your phone, desktop and the Web (and multiple Macs and PCs should you have more than one
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What's New in Plaxo
Version 3.16.2:
- Fixed problem where client would change birthday and anniversary years to be '2000'
- Improved iCal calendar handling (specifically fixes problem on Snow Leopard with Exchange based calendars)
- Fixed a few memory leaks
Requirements for Plaxo
Mac OS X version 10.3.9 or later and an active Internet connection to sync your data. iCal sync and Apple Mail plug-in require Mac OS X version 10.4 or later You must be a Plaxo member to use this toolbar, join Plaxo here.
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