The Acoustic Sound Organization ("AcoSoundOrg") is a virtual panoply covering all things ukulele! Video lessons, local performances in Tokyo, a blog, music sales, and much, much more.
I first learned of AcoSoundOrg through its YouTube postings. Frankly, I'm not sure who comprises the actual organization but there seem to be several regulars covering everything from classic Rock and Roll to Jazz and beyond. Some are better than others. All are interesting.
Given my preference for Jazz I recently watched a duo play a spirited arrangement of Take the A Train.
If you are patient you can find a some chord charts on their website for downloading. I found a TAB of Moon River in JPEG format that I was able to print out after adding it to Apple Images.
I'm an amateur ukulele player who happens to be fluent in Japanese. I hope that I can inspire you to learn more about the ukulele, Japan, or better yet, BOTH!