While broad and instant access to your e-mail, contacts, meetings and notes can be incredibly advantageous, it presents some challenges -- particularly if you need to add or edit contacts, notes or appointments on the go -- because you need to ensure that all of your sources for information are accurate and current and contain the same set of data.
One way to manage this data syncing is with cloud-based services, where an Internet server acts as a central repository and gateway to your information. A key part of achieving the dream of accurate and reliable information syncing is choosing the right service for your habits, your mobile devices, your particular mix of computers and the applications you use on them.
To help you choose, I've compiled information on six common Internet-based data-syncing options, complete with a summary of their strengths, weaknesses and which platforms and tools they work with. I've covered four free services -- Google, Microsoft's Windows Live, Yahoo Mail and Plaxo -- and two paid services, Apple's MobileMe and hosted Microsoft Exchange.