I recognize that while typing out my comments. It seems like there are two archetypes of people: 1. Those who have a close circle of friends that don't change

I recognize that while typing out my comments. It seems like there are two archetypes of people: 1. Those who have a close circle of friends that don't change much over time. For these people, phone / email work great because they have a lot more depth. 2. Those who have a large circle of acquaintances that is dynamic (i.e. relationship strength changes over time, new acquaintances appear through FB suggestions). For these people, Facebook is the only way to keep connected, admittedly with little depth. Everyone is a mix of these two archetypes. I have friends that I call, and also acquaintances that I chat up via Facebook.