Countries participating in the first East Asia Summit will be the ten members of the Association of Southeast Asian Nations, or ASEAN (Brunei, Cambodia, Indonesia, Laos, Malaysia, Myanmar, the Philippines, Singapore, Thailand, and Vietnam) and China, Japan, the Republic of Korea, India, Australia and New Zealand. In this e-brief Frank Frost and Ann Rann provide a short introduction to the summit, links to major official and analytical sources, and basic statistical data on the participants.