Opus - Open Source Parallel Corpus

http://opus.lingfil.uu.se/

http://www.globalization-group.com/edge/2010/05/download-translation-memory/

TextWorkBench

Adding Targets to xliff file

Search with RegEx:
(\s#)\<source\>(.#)\</source\>

Replace:
\0\1<target>\2</target>

Translation Web Services [Oasis]

https://www.oasis-open.org/committees/download.php/24013/trans-ws-spec-1.0.3.pdf

DoMY™ SMT Solutions

http://www.precisiontranslationtools.com/

Microsoft Language Portal

http://www.microsoft.com/Language/en-US/Default.aspx

Microsoft Translator Hub

http://hub.microsofttranslator.com/

Pontoon (Mozilla)

Pontoon is a live website localization tool.

https://pontoon-dev.mozillalabs.com/