Links
http://www.auralarchipelago.com/
Detailed blog about the music of the Indonesian islands with many field recordings by Palmer Keen

http://musicofindonesia45.blogspot.com/
A blog presenting instruments of regions in Indonesia

https://www.metmuseum.org/toah/hd/muoc/hd_muoc.htm
A little overview of musical instruments in Oceania by the MET Museum

SHOPS:
https://www.ethnic-ina.com/
Well sorted online shop selling instruments and more from Indonesia

https://www.jualo.com/pengguna/tabubu-ethnic-music-shop
An online shop selling instruments from all over Indonesia

https://www.mekarbhuana.com/
An online shop selling instruments from Bali

INSTITUTIONS:
www.balimusicanddance.com
The beautiful homepage of the Balinese Cultural Association, Mekar Bhuana including many articles and informations,
pictures and educational topics about all aspects of Balinese culture, music and dance. Highly recommended!

http://blog.mekarbhuana.com/
The intersting blog pages of the Balinese Cultural Association, Mekar Bhuana

http://www.gamelansb.com/
Gamelan Sinar Surya is a Santa Barbara arts organization dedicated to preserving, teaching and performing traditional Gamelan music.

RADIO:
http://www.bugis.nl
A non-profited radio stream from the Netherlands with almost every kind of Indonesian music