Translation now fully powered by the Microsoft Translator technology is available through Live Search, as well as IE8, the Windows Live Toolbar, and even a translation bot for Windows Live Messenger.
Microsoft's translator currently supports Arabic, Chinese Simplified/Traditional, Dutch, French, German, Italian,
Japanese, Korean, Portuguese, Russian (Russian to English only) and Spanish languages.
The company plans to roll out more languages over the next several months.
To learn from Microsoft Research about how it works, check out Machine Translation
. To try out the service, go to Translator