The dynamics of Twitter cascades

"Matt Yglesias":http://thinkprogress.org/yglesias/2011/10/18/346349/its-not-how-many-followers-you-have-its-who-follows-you/ writing about how the now famous protest sign

Friend Sense

Via "Data Mining: Text Mining, Visualization and Social Media":http://datamining.typepad.com/data_mining/2009/05/influence-not-as-simple-as-gladwell-would-have-you-believe.html, "this":http://research.yahoo.com/project/1994

Friend Sense

Yahoo! Research (including Duncan Watts, Sharad Goel, and others) has