Some used to say it is what you know. Knowledge makes things happen.
Others countered it is who you know. Relationships make things happen.
In this era of social media, people now suggest it's any of the following:
- What you know about who you know
- Who you know and what they know
- Who you know and who they know
- What who they know ... know
To think social media has changed that would be a definite no-no.