Dropbox is a handy tool for saving and accessing your important documents across multiple devices. The cloud-based service saves your work to an easy-to-access folder available on any computer as well as the Dropbox website. Dropbox protects digital files from crashed hard drives, frozen computers, and misplaced flash drives. It synchronises documents, photos, and videos across multiple systems, moving them from laptop to smartphone to iPad without so much as a single wire or USB cord.
Any file you save to Dropbox also instantly saves to your computers, phones, and the Dropbox website itself.
Your files are always available from the secure Dropbox website.
Dropbox works with Windows, Mac, Linux, iPad, iPhone, Android and BlackBerry.
Works even when offline. You always have your files, whether or not you have a connection.
Dropbox transfers just the parts of a file that change (not the whole thing).
Manually set bandwidth limits -- Dropbox won't hog your connection.
Dropbox keeps a one-month history of your work.
Any changes can be undone, and files can be undeleted.
Secure Sockets Layer (SSL) and AES-256 bit encryption.
Dropbox is available for free (though users can only store 2GB of data) or for a monthly fee for users that want access to over 50GB of storage.