Thanks to my cousin, Kumar Pereira, for this reference about a campaign in Australia. Carlton Draught Beer’s web experience called "It’s a Big Ad." Hard to describe this, because it’s so funny and watchable. Find it here. It was a viral marketing campaign, spread via blogs.
Another great idea: Virgin Mobile offers what it calls a PressurePoint Presentation. For kids. It is part of an Enlightenment Kit they offer teens who are trying to persuade parents they need a cool new phone.