Zuckerberg coined the term social graph for public social networks

Evidence

A social graph can also be described as a publicly articulated social network for a particular person. The term was coined by Facebook founder Mark Zuckerberg, and has been adopted by social network site researchers (Farber, “Facebook’s Zuckerberg Uncorks the Social Graph”; Fitzpatrick, “Brad’s Thoughts on the Social Graph”). — Alice E. Marwick, Status Update, 754

Categorization

• DEFINE: Precise definition and coinage attribution for a core field term: the social graph as a person’s publicly articulated social network.
• QUESTION: Worth chasing how ‘social graph’ became a platform extractive concept — Zuckerberg’s framing positioned relationships as data a company could own.