The rise of the Internet, social media, and mobile telecommunications has allowed us to connect with more people, across greater distance at lightning speed. These are networking tools (modern day invention of the wheel).
Technology, however, has done nothing to change the foundational aspects of networking. That is, despite technology, you still really only associate, refer and do business with those we know, like and trust.
These three fundamental elements of relationship come from within (gut feelings) and technology has done nothing to alter that. In the human species, the notion of know, like and trust has been with us since before recorded time. It is part of our DNA.