Dropbox - The Best Way To Backup & Synchronize Files - Freeware Guru !

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.

There are three types account, Basic 2G free account and Pro 50, Pro 100 account. For free account, you can get extra space from inviting your friends, each one get 250 MB of bonus space (up to a limit of 8 GB. Get double size if you have an .edu email, go to the end of this post for details)!

How to use it?

To install Dropbox, visit its homepage and choose the appropriate client platform for what you want to download. Here I give you my referral link to create your account, so that both you and me could get extra 250M space, not only me! This is Dropbox's special promotion strategy ;)

then install it, of course, here we choose the free account.

The installation is very friendly with a brief tutorial, no doubt that Dropbox self is easy to use. Just put the files or folders you want to sync into the Dropbox folder, and you can easily share your documents with friends.

Some other features and tips you need to know

Web Access is available, you can manage your files via web too.
There's 30 days of undo history for free account, with unlimited undo available as a paid option, so don't be afraid of missing datas.
A "Public" folder that lets you link directly to files in your Dropbox. You can put the files want to share in it.
Enable "LAN Sync" if you have several computers in LAN, the file synchronization will not transit through Dropbox server, thus greatly improving the synchronous speed. But Internet connect is still needed.
All transmission of file data and metadata occurs over an encrypted channel (SSL) and all files stored on Dropbox servers are encrypted (AES-256) and are inaccessible without your account password.

Apart from the above mentioned, Dropbox provides different forms of user support, including a help center, forum, votebox. The help center is filled with tutorials, tours and many other great Dropbox tools. Votebox gives you the ability to vote on features you would like future releases of Dropbox. You don't need me to introduce the forum features, yeah?

There is no need for hesitation, where to find another outstanding Dropbox like service? Create your account and get more space for you and me!
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2010.10.3 update:

Dropbox is making the transition back to school easy by giving everyone with an .edu email address double the credit for referrals. That's 500 MB per friend you invite! That goes for everyone you've already referred too.

So If you have an .edu email, make the use of it!

Regist your Dropbox account.