This document discusses social innovation and the work of the Canadian Task Force on Social Finance from 2009-2012. It defines social innovation as initiatives that profoundly change social systems to increase resilience. Successful social innovations have impact, durability and scale. The document outlines the Task Force's framework and tactics for raising awareness, influencing decision-makers and mobilizing public and private capital for social good. It discusses assessing tactics against objectives and engaging key audiences over multiple years. An Edwin Land quote is provided that social innovations seem both surprising and familiar when they arrive.