Six degrees of separation @ Web 2.0

I was just checking the "Six degrees of separation" Theory for the Psychology Part of my Viral Marketing Thesis and encountered coincidently the Six Degrees Site of the Actor Kevin Bacon.

This site is a good example how you can use the possibilities of Web 2.0 for marketing your ideas and bringing it into different social networks. Through its structure (you can embed it into your Blog, put videos on it, donate money & tell it your friends...) and the celebrities advertising for it, the site has a good viral potential.