Dropbox clients make it easy to handle the sharing of files in your Dropbox folder, but the web interface is a critical part of the service's overall functionality. It makes it possible to access your folder on a computer without installing a client, and is also responsible for controlling some of the service's settings.

The web interface can be accessed by going to Dropbox.com and logging in to your account. Once you've logged in you will be brought to page with five tabs at the top. The tabs are, from left to right: Get Started, Files, Events, Sharing and Help.

You'll find that the Getting Started tab is opened by default if this is your first time logging in to the web interface. This tab doesn't control any critical functionality but instead acts as a basic tutorial. You can see a video introduction to Dropbox's features and perform a variety of basic tasks, such as placing files in your folder and installing Dropbox on various devices.

If you complete all of the basic tasks in the Get Started tab you will be rewarded with an extra 250MB of storage space. Hurray! After you performed those tasks you can further increase your storage limit by referring friends. You earn 250MB for each friend who joins up, to a limit of 8GB.