Where on Earth is the Internet?

Some observations about the Internet

Internet Science

For example: where is the Internet?

Why does this matter?

Assumptions and Definitions

Some Basic Questions

Putting it together

Where are the routers?
USA

Europe

Routers and People: World

Routers and People: North America

Subdividing the Data

Economic Heterogeneity

Routers and People: USA

Routers and People: World

Routers and People: Europe

Routers and People: Australia

People Per Router

Router Location: Summary

Models for Network Topology

Spatial model: Waxman, 1988

Structural Models

Degree-based Models

Empirical Evidence

f(d) for USA

f(d) for USA, d < 200, semi-log plot

f(d) for Europe, d < 450, semi-log plot

Large d: distance insensitivity

Distance insensitivity, Europe

Link Formation: Summary

Generating Topologies: a new recipe

Related Work

Final Thoughts

Thanks!

What Influences the Formation of Links?

Routers and Economics

Penultimate Geographic Map, Oct 1980

Last Complete Geographic Map, Aug 1982