You've just taken a few giant leaps! You have customized the layout of your new site, framed a structure, and have created and published the contents to match. If this were a static HTML site, this would be about it. This would be all there was to a website. In Joomla, however, the fun has just begun. You can now add functional or even just stylish extras. For this, you'll use Joomla's components and other extensions—that's where the Joomla's real magic power lies.
To manage Joomla's extended functionality, you'll find yourself working with both the Components and the Extensions menu in the backend. In fact, components are extensions too—they also extend Joomla functionality. Components are found under the separate Components menu in the Joomla backend, as they are more powerful and more complex; they're applications within the Joomla application. Through the Extensions menu, you can find modules and...