Scott Henderson is managing director of CauseShift, writes about social impact for the Chronicle of Philanthropy, and is founder of NewEmpireBuilders.com, a media collaborative covering the startups, non-profits, and companies making the world better.

When you think of hackathons, you might think of coding, right? That’s certainly where the concept came from, but it’s taking on new meaning, as more non-profits and civic leaders embrace it as a format for social innovation.

In recent years, hackathons have helped city governments across the country build new web and mobile applications. These apps provide services like a way to report potholes. Now, hackathons are being used by an even wider range of sectors that involve social good. Below are three that are leading the way.MORE