Ryukyuan (Okinawan) Dictionaries
Dialect Dictionaries / 方言辞典 (including Okinawan dialects)
Accent (Pronunciation) Dictionaries / アクセント (発音) 辞典
Aloha Uchinaaguchi Channel on Youtube
There are 15 videos created by Aloha Uchinaaguchi and you are able to learn basic conversation in Uchinaaguchi.