Looking for a simple way to back up your files? Dropbox is an online application that allows you to store data such as pictures, documents, and music on the web.

As its namesake implies, you can easily drag and drop your favorite files onto a special folder in your computer. This folder or your "dropbox" will automatically sync your desired files online. Moreover when you are away from your machine and you need access to your files, simply log into Dropbox from another computer, and open your files. If you have multiple machines, you can use Dropbox to synchronize your files between all of your computers.

Dropbox is a mobile app as well. Simply download the app to your smartphone or tablet, and now you can access all of your documents on the go.