Non-profits are on the front lines of combating violence and inequality in America. They deserve more attention. Get a run down of what role non-profits play in America. Also, Ryan Pollock from T4Youth drops in to talk about his ping-pong tournament that raises money for the Chicago Tech Academy. Trala creator Sam Walder also drops in to talk about how to teach yourself music. Sean Froelich hosts the Startup Showcase on WGN radio.