Developer Circles is a community-driven program that's free to join and open to any developer. Each Developer Circle is led by members of the local community who act as leads for the circle, organizing events offline and managing a local online Facebook community. Developer Circles are forums to share knowledge, collaborate, build new ideas, and learn about the latest technologies from Facebook and other industry leaders.Developer events, conferences, and hackathons take place everywhere. But we often hear that it’s hard to maintain the momentum, collaboration and knowledge-sharing in between events. With Developer Circles, in addition to hosting meetups and hackathons, each local circle will have a dedicated Facebook Group.