Contact: Inga Kiderra
University of California - San Diego
Caption: The figure pictures a typical social-network cluster in the Save Darfur Cause on Facebook. The original seed recruiter is colored yellow. Of the 1,021 members shown here, only four (colored red) donated money to the cause, and the majority (71 percent) recruited no one.
Credit: Image courtesy of Kevin Lewis, University of California San Diego
Usage Restrictions: Use only with coverage of this study and with credit.
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