Do you act differently on Twitter and Facebook?
I hardly use Facebook these days. I hang out more on Twitter. Even though Facebook is my closed network of people I know, I feel more comfortable to post updates on Twitter and not think about what people will think. Maybe I am a bit conscious of the people in my Facebook network - mostly close friends, some family and acquaintances. Or maybe this is the way the services have branded themselves - Twitter is all about status updates and Facebook is not.
It is as if people who are following me on Twitter find my updates interesting and have given me permission to update them with anything, even if it is sitting in a coffee shop doing nothing. My Facebook network might think this as ridiculous. Do you see a clear distinction between your social networks?