Mapping places of interest based on geotags in Flickr photos (by Eric Fischer).
Excitement is had here by Fast Company and here by FlowingData. A rough effort to break apart the photos of tourists and residents is shown here:

Tags: success, interest, geography, places, photography, flickr, socialmedia, sharing, geotagging, tourism

Social networks = platform for game dynamics:

Tags: social networks, games, social phenomena, play, interaction, rules

The New York Times looks back at the work of Christakis and Fowler on social contagion.

Tags: social networks, networks, influence, obesity, smoking, happiness

From the New York Times Magazine, a great, mutlifacted article about how we communicate online.

Tags: identity, twitter, facebook, communication, networks