This Looks Like Fun

Awesome 33 Story Swing - video powered by Metacafe

Also of note, the video is a candidate for Metacafe's Producer Rewards which, from its description, sounds to me like the best model so far for monetizing viral videos.

Metacafe will pay you $5 for every thousand views your video gets on our site. Payment starts after your video reaches 20,000 views and has a rating of 3.00 or higher - which tells us that the viewers like the video. On top of that, the license to Metacafe is a non-exclusive deal - you retain ownership of your video. Metacafe helps build your brand by marketing your content and making you money.