It’s a great site. You download it onto your computer and it appears as a separate file section. For example, I have My Documents and below that, My Drop Box. Except it’s not just on your computer, like the aforementioned My Documents. You copy your files into it and they save on your Drop Box account. So now, not only do you have another backup, you have copies that can be accessed should your laptop/computer crash or get stolen.
Other features include the ability to share selected files and syncing your other computers for easy access. All you need is your password. And for those who enjoy writing with mobile phones, they have apps for that. Best of all, it's free up to 2 gigabytes, perfect for writers. If you like storing your pictures online, you can pay for extra space and have backups of them, too.