As the free and editable map of the world, OpenStreetMap is at once a vastly global and very local project. Chances are that there are other OpenStreetMap mappers, programmers or data users in your physical or digital vicinity. The community page offers useful resources on how to get in touch and learn more about OpenStreetMap, including an event calendar and Facebook group.
The annual State of the Map US conference brings together mappers and data users of all backgrounds. It is a great way to dive into the OpenStreetMap community and meet mapping aficionados and professional data users from private sector, government and NGOs.