Reflections: MySpace vs. Facebook

I read with interest danah boyd's essay about MySpace and Facebook, and how different groups use them differently in the states, and I figure she has it pretty right, at least in terms of generalisations that can be made about US teenagers (and hey, after all, the report was not supposed to be cut and dried; it was ideas, not facts and the fact that the media has gone so nuts over it suggests that they need to educate themselves to recognise a journal article when they see one -- and not see them where they don't exist). She has done the research on this, and far be it from me to speak to the contrary.

What I would like to talk about is the other reasons I can see for things being the way they are, than purely as a result of class which is not, of course, to say that danah didn't also recognise these), and reflect on my own personal experiences with both services.