Kevin Bacon's gotta be behind this ...
Why is it, when I click through the albums of people who have tagged my friends in Facebook pics, will I NO DOUBT click through and see people I had no idea were friends with my friends?!
Case in point, my school friends from Connecticut were also in a wedding that one of my best friends from LA was in.
Mind you, this happens at least once a week to me on Facebook. I don't know the conversion rate yet, but man oh man ... AHH!!!