Dropbox for Linux works just like any other folder on your computer, but with a few differences. Any file you save to Dropbox also instantly saves to your computers, phones, and the Dropbox website. Green checkmarks will appear on top of your files to let you know that they're synced and up to date. All data is transferred over SSL and encrypted with AES-256 before storage. Dropbox keeps track of every change made to any of its contents. 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). Shared folders allow people to work together on the same projects and documents. Dropbox keeps a one-month history of your work. Any changes can be undone, and files can be undeleted. The free Dropbox account comes with 2GB of space that you can use for as long as you like.