Well, at least an advertisement that's fun to watch. As I understand it, this "megawhoosh" viral spot featuring a wild ride on a water slide is supposed to promote Microsoft Office at a related site. It's all explained here. Via.
And a few more links:
1. Download a paper toy and win a skateboard.
2. Stuffed platypus.
3. Participate in the Scribblenauts art theme and you may win a Threadless credit.
*Previously: Extremely fit 72-year-old goes down water slide and skims an amazing distance over the water.
*Buy platypus toys at eBay.