IKEA viral campaign using Facebook

IKEA offered products to people who tagged pictures of products from their Facebook page.

Augmented Reality in Doritos Sweet Chili Lover package, Brazil

CUBOCC created augmented reality solution for the Doritos package, a special edition called Sweet Chili. Each package has a AR symbol which is activated in the web site of the brand.

Club Penguin

"Club Penguin is a US social networking site for kids. There is millions of kids enjoying virtual life on Club Penguin. It’s kind of MySpace but instead of blogging and listing your favorite bands, you’re an animated penguin that can interact with other flightless avatars in a virtual arctic world.
Once registered, your penguin is free to roam the tundra, schmooze with other penguins, and participate in real-time games."
http://www.clubpenguin.com/