Learn Vietnamese

FREELANG English-Vietnamese online dictionary
http://www.freelang.net/online/vietnamese.php

English to Vietnamese Translation Tool & Dictionary
http://www.vietnamesetranslate.net/translated-text.php

Byki
Your free Byki software bundle includes a full working copy of Byki Express, plus a collection of lists to learn Vietnamesei or your chosen language. It’s free and you can use it forever, with no time or session limits.
http://www.byki.com/fls/free-vietnamese-software-download.html?l=vietnamese

Learn Vietnamese Free Online Video Lessons from Teacher Phil
http://www.teacherphil.com/vietnamese/index.php?directory=1_Introduction