🛠️ Invention or technique

Social network (SixDegrees, Friendster, Facebook)

Red social (SixDegrees, Friendster, Facebook)

Date
1997-2004 · confidence high
Place
Harvard, Cambridge, Massachusetts, United States (Facebook); New York (SixDegrees, 1997)
Credited to
Andrew Weinreich (SixDegrees, 1997); Jonathan Abrams (Friendster, 2002); Mark Zuckerberg (Facebook, 2004)
People
👤 Andrew Weinreich👤 Mark Zuckerberg1984–
Field
Communication

⚠️ Disputed: the sources disagree.

What it is

Platforms where users create profiles, connect with acquaintances and share content in an algorithmic feed. Facebook took the model to billions of people.

SixDegrees (1997) is considered the first social network; Facebook the one that defined the dominant model.

What it led to

  • The attention economy and microtargeted advertising
  • Political polarisation, misinformation and the Cambridge Analytica scandal
  • Influencing as a profession and online activism (the Arab Spring)
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Sources✓ verified 2026-09-25