The Drupal Association is an educational non-profit organization that tasks itself with fostering and supporting the Drupal software project, the community and its growth. Supported by both individual members and organizations, the Association uses its resources, network and funds to constantly engage in new projects and initiatives to help educate people about Drupal and support the growth of the Drupal project.
You can know more about the Drupal Association and why is important to have a membership. Among other things, the Drupal Association maintains the infrastructure to keep the project up and running and help communities to flourish, their support to this DrupalCamp is an example of that. If you like the Drupal project please consider to support it with a membership.