active question-answering site / electronic media / online social media sites / social media / incentive systems / social media sites / airline frequent flier programs / badge systems / online communities / currency-like systems / approximate solution / question-answering site / social computing applications / online applications / computing / distributed online recruitment / richer user utilities / similar algorithm / online domains / online community / electronic commerce / /
Organization
Khan Academy / International World Wide Web Conference Committee / Stanford University / Cornell University Stanford University / Cornell University / /
Person
Churchill / Napoleon / Jon Kleinberg / Ai / Electorate / Monotone Badges / Ashton Anderson / /
Position
author / Editor / model / site designer / designer / General / /
Steering User Behavior with Badges∗ Ashton Anderson Stanford University [removed]