Twitter and Facebook have been a blessing for me.  I used to work in an environment where I was interacting with a lot of different people a lot of the time but that was whether I felt like it or not.  Now I have to spend a lot of time at home these social sites mean I can still talk to people, but now it's only when I want to and I can choose who I talk to as well! And I have found some real friends too, but more of that another day.