Found a great website to download Buddhism material from and more importantly they offer some of their stuff in Lao language - for FREE.
It's an incredible Buddhist organization based out of Taiwan called The Corporate Body of the Buddha Educational Foundation (www.budaedu.org).
Everything they do is in support of giving out Buddhist related literature worldwide for free. They're able to do this by the generous contributions of donors. The material printed is about all things Buddhism without any preference or prejudice to the many different schools and denominations in Buddhism.
At the moment they have 3 Lao titles available on their website for free electronic digital downloading in PDF format. Although I know for a fact that they have published several other titles in Lao (including the Illustrated Dhammapada and the complete multi-volume set of the Jataka Tales - both are beautifully made books by the way).
LA001 - The Field Of Merit by Dr. Thongvanh Norinth (8MB)
LA003 - Good Question, Good Answer by Ven. S. Dammka (7MB)
LA004 - The Dhammapada by Maha Chansouk Souryachack (14MB)
Available at this link: http://www.budaedu.org/ebooks/6-OT.php