This comprehensive graph outlines how social change by social media is possible.
With the popularity of the Internet, people are more connected and attuned to the happenings around them. The web enables them to contribute their opinion and help to causes or topics they identify with. Kony 2012 is the perfect and most poignant example of this. The viral video called people all over the world to unite against a stoppable cause and literally brought the world to its feet and into action within weeks (despite the backlash that occurred.) This infographic actually outlines the economic conditions in which positive social change comes about and even explores specific aspects of how people engage in social media.
In light of the recent boom of Internet-enabled crowd-funding, the infographic also outlines various people-powered platforms like Kickstarter and DonorsChoose.or, and explores how engaging each social media outlet is.