Goodreads Sri Lanka discussion

Im just wondering if theres any way to buy sinhala ebooks. I only found handful on amazon and not really interesting stuff. I live in a foreign country and its so expensive for me to buy paper versions. 

There is a group called "poth kiyawana ayata" in FB. The members of this group post Sinhala PDFs time to time. Join with this group and you will definitely find some PDF versions from popular Sinhala books. You can also request to provide PDF books from the members of this society.