I've been re-reading the notes from all of the interviews I conducted with people for my book...and Im laughing about an unexpected trend.
(Quick PS - am writing a book about social archetypes and how people can use their social presence to influence what companies do).
This is kind of funny: the people we tend to interact with in social media the most are the ones we interact with the most offline situations.
For instance a couple of my interviewees talk about sharing posts on Facebook with their roommates. One said she is super tight with her mom - they talk all the time - and that she constantly exchanges messages with her mom within social.
I guess it's evidence that we are close to who we are close to, and the platform for communications doesn't really change that.