Conversation Agent

Your Face, Everywhere -- Are There Too Many Social Networks?

In the last three days I received two invitation to join Facebook, one invitation to join Pownce and two inquiries about my Twitter address (see an analysis by USAToday). Mind you, I have a profile on LinkedIn, and an old one on Ryze -- remember that one? Does anyone use it anymore? And let's not forget Jaiku.
Why do we need so many tools for social interactions? Have we suddenly become incapable of interacting with our friends, neighbors and colleagues?
Have we become so isolated in our daily work life as agents of our destiny that we need to have surrogate environments to hang out? Read more here