You've done it! You've taken your personal programming project and placed it on GitHub as open source software. Until now, it's always been yours, and yours alone; but the moment you pushed that code, your baby left the nest. What comes next is up to you. You can choose to never touch this code again, but if you want to reach a wider audience you're going to need to cultivate a community around your project. It sounds daunting; it certainly did to us in 2008, when we open-sourced our in-house CMS as concrete5. But we were able to gain popularity in a crowded field, and you can too. In this session we'll explore how to take your app or library from just another GitHub repository to a thriving open source project.