Obesity in a Face-to-Face Network in 2000

Obesity in a Facebook Network

Smoking in a Face-to-Face Network in 1971

Smoking in a Face-to-Face Network in 2000

A Cluster of Smokers in a Face-to-Face Network in 2000

Happiness in a Face-to-Face Network in 1996

Happiness in a Face-to-Face Network in 2000

Loneliness in a Face-to-Face Network in 2000

Taste in Books in a Facebook Network

Taste in Movies in a Facebook Network

Taste in Music in a Facebook Network

Smiling in a Facebook Network

Drinking in a Face-to-Face Network in 2000