There are few websites with information on caves of Myanmar. Most that exist are just tourist pages.
Myanmar Cave Documentation Project
Official site of the work done by international cavers
Wild Asia - Barefoot in Burma
An account of the 2009 expedition to south Myanmar.
French 1998 expedition to Shan state.
Hpa An caves
Hpa An area
La Venta, Italy
La Venta, Kalaw area
Myanmar cave photos
Lots of my photos on Myanmar caves
My photos of cave fauna in Myanmar
2012 recce to Pinlaung district