Founded as a part of Discover Okinawa Promotion Project for Island Tourism, DOR39 collects and displays photos, videos, and other media from voluntary participants with the purpose of sharing their island experiences and bringing more visitors to 39 islands off of Okinawa. For more information, here’s an article from Ryukyu Shimpo in English: http://english.ryukyushimpo.jp/2011/12/08/4034/