Cold Calling Is Dead, Thanks To LinkedIn
forbes.com
forbes.com
At least paid PR is not dead thanks to LinkedIn :)
But seriously - LinkedIn is a viral spam machine, worse than Facebook in many respects except for the fact that it's not a legitimate communication medium as FB is.
Cold calling will always have its place. If it were dead, it's not because of LinkedIn.
It just takes practice, willingness to get better, and a positive attitude while doing it.