Plaxo Sync - Plaxo brings all your contacts into one place, gives you access to your data on your BlackBerry® and everywhere else you need it, and keeps your contact information up-to-date. Safely back up your contacts online and auto sync over-the-air when you use the app
Blackberry AddressBook Synchronizer lets you synchronize any database such as Microsoft Access, Excel, Oracle, MySQL or any ODBC Compliant databases. Transfer any database contents to BlackBerry Address Book or vice versa. One unique feature is that you can transfer data to specific category of Address Book such as Business, Personal etc
PortaMail Live for Blackberry allows you to synchronize your RIM Blackberry devices with Novell GroupWise without the need for a BES server. Application data is synchronized in both directions either via a non-secure connection or SSL connection
MilkSync (BlackBerry) - is an application that synchronizes Remember The Milk with the built-in Tasks application on your BlackBerry.
· Two way synchronization (or optionally RTM to BlackBerry, or BlackBerry to RTM)
· Scheduled synchronization (e.g
BlackBerrySync.com Mobile Launcher-this free home screen launcher gives you one click access to the BlackBerrySync.com Mobile Edition. You will find the latest BlackBerry News, Reviews, and Deals at BlackBerrySync.com
mTools is a suite of mobile tools which includes mHome, mShare, and mSync, with more tools on the way. mTools is meant to provide you with easy management of your mobile life and enable you to transfer files from mobile device to mobile device
Dropbox is the easiest way to sync your files online and across computers, and share them with your friends.
Note: Make sure to register for beta first or else you won't be able to log in
GCalSync is an open source application that lets you do a two-way synchronization between Google Calendar and your phone's built-in calendar.
Download events to your phone, or add an event on your phone and upload it to Google Calendar