Links
https://goldentriangleinstruments.wordpress.com/
A very good blog about various instruments of the "Golden Triangle"

http://www.seasite.niu.edu/lao/culture/traditional_Music/traditional_songs_music.htm
Starting page of the traditional music project and archive pages of “SEAsite laos”

http://www.canpub.com/nuol/
Homepage of the National University of Laos

http://www.taeclaos.org/
Homepage of the Traditional Arts and Ethnology Centre in Lunag Prabang

https://archive.org/details/NicholasPossSpeakingMusicallyAnIntroductiontoTraditionalHmongMusic
A video about the Hmong and their music by Nicholas Poss

http://www.asianclassicalmp3.org/laos.htm    
Audioexamples in MP3 format comparing two CDs of traditional Lao music

more coming soon...