I talk to the homeschooling moms in my support group on facebook, friends that belong to my vw club...old pals from high school, a couple of people I knew from college...old co-workers and current co-workers...
I enjoy knowing what is going on with them!
I have co workers that I had an interest in knowing, but we never had time. We talk to each other all the time now. A muscian whose music I liked is now a friend of mine and our families visit in person. None of this would happen without these silly social networks.