More of this social „what am I doing“

There is an interesting article about the „sites of social butterflies“ at USA Today. It provides a short summary of Twitter, kyte.tv, twittervision and flickrvision. It gets increasingly impossible to imagine how people kept up to date on each others activities just a year ago. How did they know whether or not their peers were having a coffee or not? I am puzzled how society could have functioned without that…