http://www.youtube.com/experiencewii
The biggest problem with social networks is how to make money off them without destroying your user base. A good example from the folks a youtube. An advertisment that integrates nicely into the site and into the advertisers campaign.
I got this sent to me from four different people.
Nerd side note: Didn't work on firfox or safari on my mac. I had to load it up in IE under vmware. If it wasn't for the fourth person telling me to look at it I never would have.
