The title of the site is a straightforward example of using a Skin Tag. It uses a tag to substitute the username of the site. Here's what it looks like:

When someone else views the page, the <$Username$> will be replaced by the actual username of the site.

Now you might be wondering why we use a tag to display something as simple as the username. The reason is that you can share your Skin with other Xanga users. If someone share's your skin, and it has your actual username in it, their skin will have your username as well. However, using the <$Username$> tag ensures the page will display the correct username, no matter who's site the Skin is on. You can learn more about Sharing Skins in the next section.