Facebook vs Myspace

Intriguing article I was reading this morning, about social classes and their preference for which social media they use:

http://www.danah.org/papers/talks/PDF2009.html

I'm digesting the findings and takeaway, but in a sense, I agree with its conclusions - it does matter who is in your social circle, and wherever you start, you're more likely to remain within those social circles, even online. The internet is not yet a "great equalizer" and social media like FB or Myspace will actually take us further from that ideal because we will continue to mostly socialize with those we know vs being forced to deal with the community as a whole. It's not like you can randomly bump into the corner drug dealer or the fancy CEO in your neighborhood when online only limiting your interactions with your friends.