“Why has Tumblr become the go-to platform of this moment? As we saw in Iran, Twitter can be a powerful broadcast tool for delivering minute-by-minute accounts of breaking news and amplifying concrete messages (“Down with Ahmedinejad”). And in Egypt, Facebook was pivotal for recruiting protesters and scheduling rallies in Tahrir Square. But Tumblr has served neither of these purposes for Occupy Wall Street, a diffuse and leaderless movement with a deliberately undefined goal. Instead, Tumblr has humanized the movement. Tumblr is a powerful storytelling medium, and this movement is about stories—about how the nation’s economic policies have priced us out of school, swallowed us in debt, permanently postponed retirements, and torn apart families. We Are the 99 Percent is the closest thing we’ve had to the work of Farm Security Administration—which paid photojournalists to document the plight of farmers during the Great Depression—and it may well go down as the definitive social history of this recession.”