Facebook Middlebury45 Network (FB100)

A Facebook (Middlebury45, September 2005) dataset of 3,075 users and 124,610 friendship edges, collected by Traud, Mucha & Porter via Facebook network snapshots. Each record contains node attributes: gender (53% male, 47% female), graduation year, major (42 unique), dorm (10 unique), student/faculty status; undirected friendship edges. One of 100 university Facebook networks from Sept 2005, each with rich demographic node attributes enabling homophily and community structure analysis. Gender homophily: 0.0395, major homophily: 0.046.. Suitable for community detection with node attributes, homophily analysis, demographic network structure, university social dynamics.

#College student#Fb100#Friendship network#Homophily#Node attribute#University

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The interactive network needs JavaScript.

· graph.json

The full graph has 3,075 nodes; this view shows the 1,000-node sample the pipeline drew for display. Node size is centrality, colour is community.

3.1K
Nodes
124.6K
Edges
2.64e-02
Density
4
Components
0.07848
Assortativity
0.0%
Reciprocity
59
Bridges
Most central nodes
16150.1539
26010.1535
19040.1509
13590.1311
18110.1265
29240.1184
20390.1174
4830.1174
30650.1171
3140.1139
Content metrics

3,075 records scored · min–maxmean ± 0.675 σ (the interquartile range if the values are roughly normal)mean

genderμ 1.469 ± 0.499
min 1max 2
roleavg 1.26 / 5
1std 0.565
graduation yearμ 2K ± 1.682
min 2Kmax 2K
major idμ 19.77 ± 10.316
min 1max 42
dorm idμ 329.206 ± 1.679
min 327max 336

Computed over the full corpus.

Record

Catalog key
fb100-middlebury45
Authors
Traud, Amanda L.; Mucha, Peter J.; Porter, Mason A.
Year
2012
Source paper
Social Structure of Facebook Networks
DOI / arXiv
10.1016/j.physa.2011.12.021
License
Unknown
Records
3,075
Nodes
3,075
Edges
124,610
Nodes are
user
Edges are
friendship
Attributes
nodes have attributes; edges have no attributes
Languages
en
Collected
2005 (2000s)
Tasks
Node classification (binary; gender, role, dorm_id) inferred
From the graph: link prediction, community detection
Region
Global (inferred: the platform is used worldwide)

Provenance

Originally published at
https://archive.org/details/oxford-2005-facebook-matrix link checked
Hosted copy
Mirrored on echo.directory on 2026-10-09, 452.5 KB across 1 files. Checksums in MANIFEST.json.

How to cite

BibTeX

@misc{echo2026,
  title  = {ECHO: Exploratory Compendium of Humanity Online},
  author = {Switzer, Braden and Zafarani, Reza},
  year   = {2026},
  url    = {https://echo.directory},
  note   = {Syracuse University}
}

@article{traud2012social,
  title     = {Social structure of {Facebook} networks},
  author    = {Traud, Amanda L and Mucha, Peter J and Porter, Mason A},
  journal   = {Physica A: Statistical Mechanics and its Applications},
  volume    = {391},
  number    = {16},
  pages     = {4165--4180},
  year      = {2012},
  publisher = {Elsevier}
}

APA

Switzer, B., & Zafarani, R. (2026). ECHO: Exploratory Compendium of Humanity Online [Data repository]. Syracuse University. https://echo.directory

Traud, A. L., Mucha, P. J., & Porter, M. A. (2012). Facebook Middlebury45 Network (FB100) [Data set]. https://doi.org/10.1016/j.physa.2011.12.021

MLA

Switzer, Braden, and Reza Zafarani. ECHO: Exploratory Compendium of Humanity Online. Syracuse University, 2026, echo.directory.

Traud, Amanda L., et al. Facebook Middlebury45 Network (FB100). 2012, doi.org/10.1016/j.physa.2011.12.021.

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