Royal New Sealand Airforce advergame on youtube lets you fly a virtual helicopter and you have to complete challenges and objectives. you can post your personal video on youtube
cool use of projection mapping with a mix of background & side projections, pyrotechnics, and real people to create a cool event promoting Intel's Alienware
kraft introduced smile tagging. install the smile tagging button. when people find something they like while browsing, they smile, click the button and then it will be posted to the page. others can then look at the link the person was smiling at.