Dropbox is my favorite backup service, it can not only backup files, but also synchronize across multiple computers. For example, you have two computers, both of them have installed Dropbox client. When you use Dropbox in computer A , all changes you did in Dropbox folder will be automatically synchronized to DropBox's server, then when you need to use these files in computer B, you just simply log in to your account via Dropbox cilent, all the documents will be automatically downloaded to the computer B. Is it great?Dropbox is cross-platform, you can use it on Windows, Mac, and Linux machines. Meanwhile, you can find the apps for iPhone, iPad, Android, Blackberry! So you could access your files anytime use mobile devices.





