Even though most of us are on facebook and may have innumerable friends on the network, yet we have just one or two best buddies with whom we can bare our hearts.

Study researcher Matthew Brashears said, “Although this shrinking social network makes us potentially more vulnerable, we're not as socially isolated as scholars had feared. Rather than our networks getting smaller overall, what I think may be happening is we're simply classifying a smaller proportion of our networks as suitable for important discussions.”
Source-Medindia