Can be accessed from User Settings → FB Fanpage Rotation on the top menu bar.
It is possible to configure multiple Facebook pages that your patrons might need to 'Like' before they get access to the Internet. This can be done by adding the URL of those fan pages and adding proper weightages to them.
In the above example, the chances of the Honda Civic page to appear is about 20%, while it is 25% for Hyundai Accent, 30% for Toyota Corolla and the rest 25% for the Wavespot location's default Facebook fan page.