Points of Light’s Conference on Volunteering and Service is the largest service-related convening of nonprofit, government, business and civic leaders in the world. Each year, thousands of people who really care about the future of volunteer service convene in one place – to learn from, share with and get inspired by one another- to work together to increase the number of volunteers in the world and the impact of the work they do.

http://www.volunteeringandservice.org/index.html