Sinhala Web Based E-mail - Sinhala email service. Font independent! - http://www.lanka.info/smail/mailClient/clientFrontPage.html
Ceylon Online - Bidirectional Sinhala-English dictionary and a lot of information about Sri Lanka. Add your own entries and ask for translations. - http://www.ceylon-online.com
Bodding's Santali Dictionary - Online dictionary and basic pronunciation rules for Santali. - http://www3.aa.tufs.ac.jp/~mmine/india/Bodding/index.html