The Open Society Institute also sees the social value of good data visualization, which it describes as "a powerful tool for advocacy, outreach, research, organization, and education." That's why it commissioned a free how-to booklet on data visualization for NGOs.
With the support of the Information Program, Tactical Tech and John Emerson (of Backspace.com and Apperceptive.com) have designed and produced this booklet on information design. Visualizing Information for Advocacy: An Introduction to Information Design is a manual aimed at helping NGOs and advocates strengthen their campaigns and projects through communicating vital information with greater impact. The booklet aims to raise awareness, introduce concepts, and promote good practice in information design—a powerful tool for advocacy, outreach, research, organization, and education.
http://www.soros.org/initiatives/information/focus/communication/articles_publications/publications/visualizing_20080311